@Beocat Yeah I have to agree on everything you said basically. Not to mention the very ecchi animes also make people look down on anime too.
I don't have any issue with "normal" hentai and I'll admit I have watched a little, albeit a very long time ago. However I would say 95% of it is utterly revolting, at least by my standards. Sexual abuse and rape are truly disgusting and they seem to be by far the most prevalent theme in hentai. I don't like to kink shame, I think it's fine for people to have their own preferences and all, but getting off on sexual abuse legitimately concerns me. While you could argue it isn't real and nobody is being hurt, the concept of sexual abuse still is very real. Not to say someone who watches that stuff will always become a sexual predator of course, but still it can lead to unhealthy thinking habits.
Now if a hentai does not involve sexual abuse or anything else particularly firetrucked I am entirely okay with it. Just don't get too absorbed and end up objectifying people and/or anime characters~