I guess we're wired to fear what's unknown and different from us and as long as we don't expand our knowledge of the world we'll manifest fear as racism, bias, bullying, and so on.

We either manifest love or fear, everything else comes from these two. So we have to expose kids from a young age to diversity in a loving way, so that when they grow up, those boundaries disappear and everyone is seen equally and the color of the skin becomes just that, nothing less nothing more.