I don’t think just giving up and allowing porn deep fakes and stuff of people is really an acceptable answer here.

It's the only sensible answer. Anything else would require an extreme violation of everybody's privacy and the implementation of total surveillance. See France's recent attempt at giving police full access to peoples phones, that's the kind of stuff you end with when going down that route.

This AI is out there today, can be run on every half descent gaming PC and can generate new images in about 30sec. And it will only get better going forward. Images are as malleable as text now, you can accept that, or keep trying to fight windmills.

but sites absolutely can manage deepdakes

Of course they can, and most already do. But on the whole, that really doesn't have much of an effect, anybody can make their own sites and you don't even have to go deep down into the dark web for that. It's the first link on Google when you search for it.