> So when you accuse them of being these terrible things, they resent you.

These people have been resenting everybody that isn't like them since they were forced to give up their slaves, this is just the newest thing they're resentful about. They will always be resentful towards a system that doesn't make white people top dog by virtue of skin color.

> and everyone thinks the other side is entirely responsible

This is more "both sides are the same" rhetoric that is only used to empower the fringe beliefs and extremism in the American right. The whole developed world is more or less on the same page regarding science, except the American right. That's not a political divide, that's a sign of a fringe party full of extremists.