I have found the opposite - that human beings are effectively mentally identical. They think so much the same I cannot tell two people apart by ideas alone - if I cannot remember their faces, the are the same person to me. This makes sense, as society enforces identical behavior with an iron fist.

The only hint of difference is their random emotions - the way people's emotions change randomly every instant, two people mathematically cannot hold the same emotion at the same time. But the same trait makes them extremely dangerous; they could seem calm one moment, but flip into a violent rage the next - and there's no way to either predict when this will occur or determine what triggers it.

I find that people grossly exaggerate differences, as if they have a distorted sense of scale. They will nitpick any difference, no matter how small, and exaggerate it into a chasm of contrast. I think that's why they hate me - I am more different than anyone else is to each other by at least an order of magnitude, so their delusional minds exaggerate that difference into a monstrous boogeyman. They're so used to obsessively nitpicking the slightest variation that when they see true difference, their minds blow out.