Revenge porn is bad. Imaginary revenge porn is just as bad.
People in popular culture have been used by artists to their liking since the beginning of art. Don't compare this to someone posting naked pictures of an ex who has a completely private life and doesn't spend their entire being trying to be in front of every camera possible, usually in outfits that make it quite easy for the imagination to extrapolate into the pornographic.
So other commenters have a direction to debate you in.
My response, to both: good luck putting this cat back in the bag.
Whatever harm these people are doing, they'll continue to do it "in private"; be aware of the "new normal" and adjust accordingly seems like the only pragmatic approach.
It's literally just art in bad taste.
That's not a new experience for most people on the Internet.
https://www.wired.co.uk/article/generative-ai-images-child-s...
So is this "literally just art in bad taste"?
Seems you've made it art, even if it wasn't before.
If you're only here to pontificate, not curiously discuss your position, you're gonna have a bad time.