For those who haven't seen it up close but want to understand it, I strongly recommend this long dive into the forums for "estranged parents": http://www.issendai.com/psychology/estrangement/
The gist is that plenty of kids with narcissistic or abusive parents grow up and eventually cut off contact with their parents. For some, I'm sure, this forces a reckoning: they really look at what they've done and try to get better. But many do what they've done their whole lives: find ways to explain why they are still right.
Dashiell Hammett in The Thin Man gives a good description of what it's like dealing with people like this: "Most people [...] get discouraged after you’ve caught them in the third or fourth straight lie and fall back on either truth or silence, but not Mimi. She keeps trying and you’ve got to be careful or you’ll find yourself believing her, not because she seems to be telling the truth, but simply because you’re tired of disbelieving her." A description more familiar to people these days, I'm sure.
Another great book that also touch on that is James C Scott The Art of Not Being Governed[2]
[1] https://archive.org/details/JacquesEllulTheTechnologicalSoci...
I can’t imagine being dosed with that much LSD while people are yelling at you and trying to scare you (this went on for years?) Doesn’t surprise me that that could break a person.
https://en.m.wikipedia.org/wiki/Ted_Kaczynski#Harvard_Colleg...
There is a saying in my country, that is hard to translate in English, but it goes something like: powerlessness births violence.