I think the SJW suicide argument and the bully argument are interesting ones. Since they come from a perceived majority that feels self-righteous its peer pressure achieves levels that incels can't ever hope to match. The potential for fanatism is there.
I've met (online) SJW that seem to panic whenever they are forced to stray away from their perceived lines of thought. There is some irrationality to that level of ingrained opinions. It was disturbing coming from people that was supposedly well educated to say the least.