Yeah, it's not that angry people don't realise "there's no reason to hate", it's just impossible to let go of it. So impossible, that you'll straight up claim up is down and left is right if that's what it takes to avoid admitting to themselves the thing they know are of course true. At that point, having not accepted reality earlier means that they also fear the "shame" of admitting that all the suffering was for nothing.

Three hardest words "I was wrong." People are afraid to be "shamed" for having been wrong. Not for making mistakes, but having been wrong. If the setup is 'you're trying this new thing', getting it wrong won't lose you face.

If you're a known person and you've asserted something, then you it's very hard to go "you know what, I see it now, I was mistaken". And with groups, it gets harder and harder. And then people just don't admit to being wrong. Why admit it's moronic to say "the Earth is flat" when there's a million morons like you all sharing in the delusion, despite everyone knowing it's pretense. And then getting angry on online forums. Then start hating "the norms" and suffer alone at home cursing NASA, while really knowing it's all you.

See through you, we can.

Fear leads to anger, anger leads to hate, hate leads to suffering.