There is a progression beyond cognitive dissonance. I was engaged in a fairly heated debate on YouTube comments (I know... the epitome of insane threads of cognitive dissonance, perhaps beyond Facebook due to the anonymity) and this sort of debate ensued.
Here's an interesting "disorder" I came across while trying to figure out what was going on. My diagnosis: Derailment. See https://en.wikipedia.org/wiki/Derailment_(thought_disorder)
This seems, at first blush, an order of magnitude beyond simple cognitive dissonance. But I think folks in the political commentary realm are increasing marching toward derailment... either through their self-inflicted mental problems, or by way of joining the crowds of polemics that spout hyperbolic tripe about the most insignificant issues of life.
Peoples gots lots o' time on der hands, mate! Oh-Em-Gee.
Derailment and willful cognitive dissonance are just tools in the bag of fake indignation, self-centeredness, and the competitive system we like to call social media. It's neither social nor media anymore.
Very good reply!
I like to call it "antisocial media" these days.