How do people in this day in age become nazis/neonazies sexist or even incels when there is so much knowledge against it? Do they get anything out of being that way?
Possibly yes but that doesn't help if one is morbidly afraid of approaching women for example.
However my point was that it's a bit pointless to ask why would someone become something when by definition it's involuntary. It's like asking why would anyone be under 6ft tall.