the main and most important reason why i don't like fujoshi/fudanshi/yaoi culture is bc a lot of these ppl fetishize gay ppl.
the fetishization of any group is literally dehumanizing and objectifying that group of ppl.
by dehumanizing and objectifying gay people, ppl are saying that they only exist in a sort of odd fantasy, and that they ultimately deserve no respect since it just exists to please you and your fantasies.
i get that a lot of ppl who consider themselves fujoshis support lgbtqia+ rights, and if u are one of those ppl, i would suggest to just stop putting urself under that harmful category of ppl, and just say that you enjoy yaoi.
you can enjoy something without taking what you enjoy and making it creepy and harmful.