Power is competence.
The right-wingers don't want to admit that for some people, there are no jobs; they think that conscientiousness in and of itself will do the trick.
The literature associating inequality with social instability and poor health outcomes is pretty convincing.
It's not just human nature to associate in tribes. It's deeper than that.
I've 20,000 hours of clinical practice; you're not naive after the first few thousand. I've helped people deal with things that most people can't imagine.