I am the only one who feels like this?

I feel like im the only one who feels kind of weirded out by this but everytime I go on Tik tok or in the comment section of a bl where the top is really shy or a""loser"" kind of personality I see comments like ( he should have been the bottom kind of comments ) and everytime I just get weirded out by these comments bcs why is it when a top ( in this case but also in general) have a shy personality or is submissive has to be a bottom . It gets to a point where some people has dropped a bl cus of this ?? Obviously you can get disappointed bcs of this but idk maybe that's because when I read a bl it's more for the plot and romance than the sex but still .
Maybe I'm just thinking way too much or that's just me problem but I just wanted to point it out .

No hate to anyone who does this but I'm just wondering if that's just me ( ps: English is not my first language so I'm sorry for any mistakes I made or if I said anything disrespectful )