Here's my view on humanity in a paragraph, or two. I don't know I haven't started writing yet.
So basically, I believe, that we are all born with an innate nature to do certain actions. These impulses are very broad and general, like say wasting time, being lazy, hunting, learning, etc. These natures make up a large part of who we are. Then parents come into the mix. They act as a suppressant or accelerator to our nature's natural impulses. These can be good, say stopping a child from biting the head of another baby, or encouraging a child to always be kind to others, or don't be afraid to defend yourself, but only if it's necessary. Conversely these can be bad, such as forcing a sociable child to stay home because you feel 'lonely' or encouraging a child to torture small animals simply because they are stronger, or to repress anger and never speak a negative thing if it is to a person's face. etc.
With the combination of these two steps in a person's development, it leaves them pretty open to any kind of label, be it good evil ambiguous jerk douche saint friend, what have you. So in my delusional little world, that i choose to believe is true, (self-deprecating humor, you're supposed to laugh at that) people are not always inherently evil, and if they are their parents always do a good enough job of suppressing the most violent impulses they have, via their nurturing. Taken to the extremes, and the one of the reasons i hold this view, Hitler. Another Mother Theresa. A world that can hold both of these people must have a very diverse moral field and can't be a simple one step process in development, like simply, you are born evil.