If "wallowing" is the source of the issue, than you would need to prove that certain content has more capabilities of getting people to wallow in it.
Also, you would need to prove that the problems are linked to the content and not linked to the wallowing. Overdoing an activity is usually a problem, no matter the activity.
You do not know why people play such a game. You do not know if they wallow in it. You argue backwards. You dislike this content and try to find ways that justify banning it for other adults. Your angle was the slippery slope, and that games are somehow educational and such games do not guide people properly.
But if your angle would be true, we could apply it to other genres as well. What good guidance do games give, where you play a criminal? Popular example is the GTA franchise. Also, tv shows where the hero is a criminal. Breaking Bad comes to mind. You think people liking that show are guided towards indulging or overcoming something? I dare say they are guided into liking the show
I am not justifying the content. I am critisizing the arguments used to ban it. They were used decades ago for games I played.