icks in yaoi/bl

what r some of the icks u get when reading bl and I mean obv beside the rape and the other morally wrong stuff
I‘ll go first: when the damn uke doesn’t act his age. ts bros be pushing 30 and be acting like lil bihs.
And the weirdest thing ? When they r side characters in the main story, they r usually mature and wise, but as soon as they get their own side story, all of a sudden ts bihs be acting dumb asf, doing immature things, whiny, overly feminine and overall js childish