Uh, it's fine? Porn is porn and as long as nobody is harmed you do you ╮( ̄▽ ̄)╭
Everything can be bad if you take it too far. If you're a chill person who just likes reading yaoi ay that's fine. If you're a person fetishising gay couples and letting this behaviour affect other people around you- it's problematic.
Really depends on pers......