Disable your nsfw setting. Nsfw is opt in. If you see those games on the front page, it will be your recommendation section on the front page. Itch does not feature nsfw games in their fresh and hand picked section.
User tags are a fine idea, but there is a huge problem there. About 1.2 million games on Itch have 0 ratings. I do not think many users will take the effort to give tags. And the tags given by the few users that bother, might be just as inaccurate as the developer tags.
The annoying thing about ai slop is, that some creators spam it. They release many, many games or assets. And if you try looking at a particular nieche, it can happen that all you see is garbage of one spammer on a page. I guess no one would care, if a developer releases 1 sloppy game, be it made with ai or not. But some of those release 30 projects in a month.