Change is hard, this reaction is the protection of ego and a pretty typical thing IMO. Conservatives, IMXP, suffer from this more than Liberals. I was raised strict Conservative, and it was a very typical and acceptable response to things that didn't fit our definition of acceptable. As an adult, challenging myself to change this has probably been one of the harder things I've attempted, but opening the mind to new ideas does have it's benefits.
The thing is when they're clearly making clowns of themselves it becomes obvious their issues are just due to their own fucked up mentalities.
The sad thing is they're completely oblivious to what complete and total clowns they are being. I've pointed out before the moronic "I love the smell of liberal butt hurt in the morning" (by someone that used to laugh at the "you eat pieces of shit for breakfast" bit from Happy Gilmore and yet didn't notice he was being Shooter McGavin in that scenario), and plenty others. They really are so fucked in the head they cannot see how ridiculously stupid they're being.
Its like that video of the crazy woman that's shrieking at the truck driver and starts bawking like a chicken and then rolls into the ditch and other shit. If they had to actually see themselves they'd probably be embarrassed but they simply cannot gain the self reflection necessary to even be able to have any sort of introspection about "oh, no, I'm being a dumbass" and then they're tripling down on it because they have entire gaggles of other idiots cheering them on.
I've said it before, I think the only way is to make them watch themselves. If they had to actually see how fucked up they're being I think they'd start to change. But as we see, they don't bother doing any of that. Look at our resident king of dipshittery that is the OP, he clearly isn't reading or actually watching any of the shit he's citing unless its a single pic of something he's being outraged about, because if he was his own brain would likely prevent him from turning into the frothing at the mouth moron that he becomes for his clownshow.
I think the reason Turmp only watched Fox News is because they were the only ones that would edit out the ridiculous shit that showed him what a clown he was being. If he had to actually see himself it would have destroyed his fragile ego.