Does fiction excuse everything?

So yall I'm confused about some things like I've seen people ALOT people defending some incest manhwas and mangas because they're fictional and don't care
Also I've seen people say lesbians can Like fictional men and still count as lesbian because fictional men aren't reall
This is so weird really weird by following that logic so some disgusting people can like fictional kids and don't count as pedo because uhh it's fiction who cares