As creepy as it can be, at some point animated, drawn, or whatever artificially created porn just has to be ruled as totally legal. It's just lines on a sheet of paper or pixels on a screen, nothing living is actually harmed, no matter how extreme it may look, barring an attempt to pass it off as a real photo, video, or whatever.
Just look at the violence end of that same spectrum. We have PHOTOREAL games of 100% nonstop dismemberment, beheadings, gibbing, etc but few bat an eye because no one is actually being hurt. same with porn.
The arguments that realistic CG can be used to mask real sex trafficking or snuff films or whatever just seem like reaching to me, I gotta think there is a very select and very sick market for that stuff and it doesn't overlap with spicy VNs, game mods, or stuff like that. It just seems silly to have age and relationship disclaimers on that stuff as if it were an actual acting gig with real people. I dunno, maybe I'm only skimming the froth on top and the well goes much much deeper and I'm just naive. I'm sure Rule 34 is worse than I'm aware and some creators just can't limit themselves.