Why are some people so triggered when it comes to someone's genuine personal interest?

This can apply to almost anything, but this is mainly about the different genre in manhwa/hua/ga's including gl/yuri, bl/shounan ai, shounen....and so goes on.

Why are people so triggered when it comes to someone's personal interest in any of these genres if it includes them not getting involved with any of the other ones?

When it comes to bl, the amount of slander i've seen thrown at people who only read them, but people go around and worship the ground that people who only read gl walk on, why is that? One of the only main reasons I know is definitely because of fetishizing which gets ridiculous when you think about how people who only read gl fetishizes it too, they can not be excluded but they still are.

I don't defend those who fetishizes the trope, but i'm just confused on how it could be such a problem? I also used to be one of the people who only read bl ( I started reading more other genres) I can say i've been one of the people getting slander because of that but is only reading bl proof of being a fetishizer Really? Because of a genre you just like?

It reminds me of the logic some people throw that shounen only readers are boring and insensitive, and question, what actual right do y'all have to throw hate on someone's preference?

I just don't think it gets fair at some points, it gets exaggerating and unlogical. Only reading and adoring one genre is not criminal is my thinking, I hate people that criticize other genre based on one only genre they like ( saying it's better than the other which can be proved otherwise ) but I also hate people criticizing someone's personal interest and assuming such ridiculous accusations all around tbh.

This can be discussed however, I don't mind people detailing and explaining their point of view, also as I said this can be applied to anything so it can include y'all's own observation of this same situation but a different topic.

P.s sorry for bad english.