How so? If CP and things adjacent to it (drawn stuff, “teen” porn, catholic schoolgirl outfits, etc) content is going to make people promote and encourage people to molest children, why wouldn’t gay porn promote and encourage homosexuality?
Like this is one of those things that feels a lot like picking and choosing based on preference. I suspect violence in media being a historic right wing talking point is the only reason it’s not on the bad list like sexy women and loli stuff.