If you remember the post trump election memes about economic anxiety being mediaspeak for racism, this is basically where that came from.
Bigotry is a despair response, when the promises of normalcy fail someone, there’s a chance for them to start looking for new meaning to understand a seemingly indifferent world, and in that state of mind, being told you’re part of an exclusive club of inherent superiority is the ego stroke that gets them off.
From the moment they take that poison pill it basically plays out as an analogue of addiction. Even as they watch the sludge they’re mainlining destroy everything around them it doesn’t cut them off from, they just can’t stop, because the validation of feeling that it’s the entire world that’s wrong instead of just you being shit out of luck is too much for a lot of folks to be willing to part with.
It also doesn’t help that these people tend to get fired from jobs that don’t put up with racist bullshit, turning the whole validation needing into a vicious cycle sort of deal.
This is also why some very stupid self described leftists seem to have zero worry about the rise of fascism (even as they insist that they’re the only ones who truly take it seriously as a threat), they think “just do a socialism bro” will instantly fix everything as if economic hardship would never happen to a socialist society even within a vacuum.
They literally think you can just pay the racists to stop being racists, and that you can pay a heroin addict to stop shooting up.