I personally blame social media for a lot oft this. Mob mentality has been a problem since forever, but Twitter has created a nation-wide 24/7 mob which is angrier than ever and never disbands. I blame that for the elections of President Trump, Congresswoman Ocasio, and other such divisive figures. I also think it's responsible for the phenomenon of each "side" seeing the other as morally wrong, inuhame, and almost not people. It's been known for a while we're meaner on-line because we can't see any one on the other side; I think that's a significant part of the problem.

This, of course, begs the question: how do you fix it? I don't know.