My dear friend I really think that we do not disagree as much as you think and in fact is merely in the ways we look at the role of human nature that we seem to be on opposite ends.
If I may approach it with your own words here..
What I have witnessed from pure observation is that when a child/adult gets hurt, they hurt back almost as an immediate response. (I am not saying ALL people do this). I do not know if that is human or animal to desire such vindication at a young age, and worse adult stage of life, but in my personal opinion for whatever it is worth to anyone, through advancement of our intellect and moral development we gain a wisdom to not hurt back, a deeper satisfying gratification to love rather than hurt.
Remember once I told you how much value there is in observation, and indeed so very important for us to do. In this observation you are able to see that even as a child we are learning to experience with our emotions. This child has a natural instinct to hurt when they have been hurt. This is a far cry from a natural instinct to kill. Indeed not even in the same set of factors. Furthermore , a child learns by doing this that the satisfaction in hurting is quite empty and does not serve to aid his hurt to any degree and if it is emotionally able to make him feel better, as he grows and experiences understandings and experiences he will eventually grow up/evolve to the point where he will see that hurting others or lashing out does not make him feel better and only makes him feel worse. The child would not have created or chosen to hurt the other, unless he had been hurt and even when a child does hurt others, this too is a learning experience and quite natural.
In reference to the people your sister met , I too have been faced with the reality that some people seem to be born with hate in them and do seem to enjoy watching others suffer. The key here is seem. We do not know that these individuals are truly human for example, lol, but we will assume that they are. lol . In that case how do we know that they have not been traumatized by some event or food source, chemical compound etc. Things of many places, times, and even instruments of varied and numerous amounts could have been the cause of the changes taken place within these people. Perhaps they are merely used and incarnated to serve as only catalyst in the lives of others. These people are few and the numbers comparative in the grand number of humans negligible. To know human nature is merely to look at self. If you are human , you know what is and is not a natural state by looking at self. Looking outward at others in 99 of 100 cases will only serve to agree with your assessment. Perhaps 99 is a bit high but I still try to give a positive slant here lol.
We are here to learn from experiences .. to experience, to live without the comfort of a veil removed , so that we have a will to survive. The will to survive is a natural condition of this life, this should not be mistaken as survival of the fittest or compared to a person hell bent on the destruction and pain of others. It is simply not natural in humans. One of the great minds studied at length the mind of the sociopath. In the case of these people, there would an observed and demonstrated total lack of regard for any of the people around them. These people appear to have no conscious responsibility to others and no regrets in themselves for hurting anyone. A monster some would say. The most interesting thing about this study though is that these people literally have no emotional empathy whatsoever. Not that they lack an understanding of other emotions , simply that they do not have any empathy at all. I myself can not imagine life without empathy, indeed it would seem to be one of utter heartlessness. This is in a very few people, and the key to treating them, as they do not always, all, have to be a danger to society, although most of them are, but the key is to show them that it will serve them better if they were smarter in their approach to get what they want by simply acknowledging they do not have empathy, but most people do. They see that the smart way to gain what it is that they want is to work in the learned components of what empathy causes others to do, think and feel. So that they do not jeopardize obtaining what they want by hurting those with empathy. In other words, they must understand that they lack all portions of empathy, which means they will never have it. However, and what makes them so dangerous is that because they have none they can not know without being taught what it is and can not begin to understand how it will affect others or themselves. Once they learn what it is they lack and how it affects others, they stand a chance to at least be in society and even become a good part of it, by learning the characteristics of the emotion they lack. It goes back to the infringement on free will. For the sociopath it is better FOR THEM, smarter, to act in the knowledge of empathy, then to continue in ignorance, not because they care, lol , but because the odds that they can get what they want are greatly increased by doing so. It was astounding to the fellow who studied this and he was convinced of the success of this type of treatment. When asked if he would be comfy if all of them were placed into society that he studied, he was horrified at the thought. However, at the same time he was very clear that not every sociopath belonged in prison or mental hospitals either.
Sorry about the rabbit chase but I loved learning about that study and it seemed to fit in here if only to say, these people may be human and may not be (they have the same lack of emotion that the Orions or Greys (e.t. ) have been reported to show. The point though is that even if they are and I am sure they are , they are functioning without all abilities of a human being for some reason. This does not mean that human nature is a nature lacking empathy. It simply means that some people are born F*%# up! There is a reason but that is also debatable where human nature in my opinion is not at all.
I guess it is safe to say, at this point and unless people here are able to show me that my opinion is incorrect, this will be and is far more than just an opinion. In fact, it is and has been the very key element of what I perceive to be as my personal life purpose and intend to go out and teach others in schools and universities and anywhere they invite me to speak that the key to changing the things we do not like, begins with first knowing what it is to be our self. That begins at the very basics of human nature, and certainly from there we must address the differences in genders and then to sexuality and finally the ability to accept all that we are without shame and guilt. This is when we must throw off the conditioning to become all we can be. I already do this on quite an enormous scale and have been blessed with an few unique gifts in expression and what some here call a golden tongue. lol Very erotic thought for me, although I realize it was not intended that way. still there it is none the less. hehe. Seriously though , it is what I do and truly it is of a great help to people , a great number of people, perhaps not as much a need in those as spiritually aware as we, but indeed a great many benefit from my insight. It is a great and powerful gift for someone to come around and give you freedom from years of guilt and shame, simply from hearing the truth and the power in the human condition. For the ones that are chained by religious conditioning, it has not all been bad for them, and I am the first to say so, yet knowing and understanding that when we act in any fashion to repress a human trait and feel shame to have it, that what we are actually doing is saying To God, he made us wrong or something along these ridiculous lines. It brings him and your creation dishonor. Have mercy! and if any book or organization or idea for that matter asks you to do such a thing, it is your best bet to run, not walk to your nearest exit! They are not holding your best interests nor do they have any reverence for God.
I want you to know that I don't find your opinion is wrong, I just don't find a very few key components used to create your opinion valid in the context of this particular topic. For example I am not against the idea of evolution, in fact it seems logical that we were perhaps created at some point in the past more closely related to the animal. However, to assume the story ends there or begins only there is very unlikely and indeed although mamals, we are not animals and therefore that part of the argument, although makes perfect sense and perfectly correct in the animal kingdom, does not belong in the make up of human nature, we are not animals. period.
Once we remove those elements in forming your opinion if you look at that , I think you will find we can agree on the elements of human nature. Hopefully, if anything can be certain in having these really great conversations in my mind , is how loud and clear the message is regarding the need we have to go back to square one. If we can not arrive at the same conclusions as intelligent reasonable people, I have no business teaching at all. If there is a chance I am wrong in my perception of human nature, I truly want to know that because, I surely would parish in my mind body and soul to imagine I might have thrown someone off with bullshit that hinders them along their journey.
I am very confident that I have done my homework and taken the time to peel each and every layer of conditioning, and see now who I am simply as a human female and in addition to that and to my own humility and sheer shock was forever changed when I learned what it is to be a human male. I could never imagine to put a price down for the education I received in those years, truly I value it more than a degree at any university in this world. It has been a priceless gift and one I intend to show as many who are willing to listen. What I have to offer people is truly life altering and on the positive side of it all. I am lucky to understand and to have been blessed with it and I am humble too. however, I speak with authority, because I have earned the respect and knowledge to be an authority, on this particular topic. When it comes down to human nature and who we are as a species, what makes us tick, why we do things and even in anticipating what we will do next, I won't be so bold to say I know better than any other, but I am confident I can stand among the most qualified. This as you know does not mean I am perfect or that I do not make mistakes in judgment or in my own life. In truth I make more than my fair share. I am never so arrogant that you can not show me a mistake , just be ready to argue the point meticulously . hehe. I love that you do this with me K and look forward to any new additions. You too ozziegem. Thanks very much for the opportunity to share with you.