Something I've always wondered is what kind of women were in the lives of incel men when they were young. Did they have a bad relationship with their mother? Did they lack sisters or other female family members? Or is their family situation irrelevant? Maybe some particular situation in their early years caused them to develop a complex around women?
I'm not an incel, but I do think there are cultural problems among a large percentage women (and men). I'm bi, but woman often don't like my less planned out take on life, but men don't mind it so much.
I also think car based infrastructure and the lack of 3rd places is destroying social circles, contributing to inclism.