They can't be normal for once, huh? They really have to push their fetishes in there as hard as they can, right?
This is so bad that the next guy who makes a normal Isekai with a normal MC, normal companions, with adults looking like adults, no slave lolis , no incest, etc. will probably soar to the top of popularity.
I know weebs are degenerates but damn, I figure even them have got to want something serious and normal once in a while, no?
All those fetish isekais should be hentai so the problem is fixed right then and there. Have the father-daughter lolicon incest mangas be its own thing, apart from the normal shit. Those who enjoy watching children getting fucked can do so on their own while the rest of us have an easier time finding something closer to normalcy.