>>11980841I'd say autism is the most prevalent theme
>One large incel forum conducts periodic polls of its members. In a poll this past March, 88 per cent said they were unhappy; 74 per cent had long-lasting anxiety or emotional distress; 77 per cent were not optimistic about the future and 71.5 per cent said they were on the autism spectrum. Its poll last year found 67.5 per cent of members had seriously considered suicide.It's worth noting that Elliot Rodger and Alek Minassian were diagnosed as well.
Think about it though, their overly analytical approach to human relationships and sexuality etc. is in itself pretty autistic in nature. They try to quantitatively understand something that's largely qualitative.