a easy way to group both the incel phenomenon, as well as all the gender & sexuality fluidity is to consider 'the beautiful ones' outlook that seems to come about from easy times. from the experiments from half a century ago, when u take care of food & shelter etc, as well as remove predators, this just seems to develop. it's not a personal choice per say, but a macro percentage of the population that end up falling into these spectrums. You can theoretically force yourself out of any of these paths assuming you believe in free will & choice.