@hatsune_kun the impression i get is that this stereotype developed when sff Fandom & the wider internet were VERY male dominant cultural spaces and so bl/transformative fandom being even like an even gender split would have been seen as “unusually feminine”
and then, like many gendered hobbies it kinda turned into a self fulfilling prophecy where men, esp cishet men were leery of doing something that was “for girls” so the space continued to skew towards women & queer folk who were comfortable w/that reputation
@hatsune_kun also incidentally worth noting that the fujo in fujoshi literally means “girl” in Japanese so if you are restrictive enough in your definition of fujos then tautologically all fujim are women