I knew parts of it, but that it's this bad?

I'm banned from talking about my childhood in the house, by both my wife and former roommates. If that tells you enough.

But you can also be in an echochamber where you are convinced that group X is bad because the echochamber is only posting bad things about them.

Well most people want to live off memes and injokes instead of actually grappling with the idea. They want to be part of the group, so they will just adopt surface level traits of it and then begin to virtue signal. You can't stop such retardation, the same way you can't uplift normies or savages.

But I think most people don't fall for echo chambers because of the strength of the echo, they fall for it because its what they wanted to hear. Imp wanted to hate women (for some personal reason I never found out) and so he built a case to do so, as do feminists who start out afraid of men (due to trauma or paranoia) and then build an ideology to make that seem "correct and normal."

And I've found most of the time, these echo chambers start by someone wanting to feel like a contrarian, a rebel, and a martyr. Most "racist" ideologies start that way online, by someone who feels cool saying Nigger/Faggot/Kike/etc. and gets off on people hating them. And from there they build an ideology to "justify" it.

But to worship someone for four years and then make him Public Enemy No. 1. I mean, you could wonder that maybe he had a point.

I don't think its any different than being great friends with your brother's wife for years and then flipping on her when she cheats on him and a divorce happens. Major, image changing decisions can and should cause people to be treated with consequence.

In his case, it was to be discarded to the winds of history as a nobody and a snake.

People say "I hate Crenshaw because of red flag laws".

Most people are smarter than given credit for, but they can't verbalize or conceptualize it. In fact, asking them to do so will often talk them into dumber spots.

So they by learned instinct recognize Crenshaw brings nothing to the table, and would be nothing without their support that made him more than a faceless Congresscritter, so they can turn on him on a dime. While Trump clearly is much harder to do so because they logically know his value, so he is given leeway.

Now those people should work to improve their ability to verbalize the logic for themselves, but again you can't uplift normies very much.