As vile as those images might be, this is a First Amendment issue. The only possible exception might be if such images are clearly presented as genuine, when they are not.
You don’t want to be the target of such filth? Fine. Fair enough. Then don’t be a famous actor or singer. Go be a plumber or forest ranger.
Or a high school student.
Teen boys at New Jersey school accused of creating AI deepfake nudes of female classmates
I overlooked this part of your post.
Yes, this could be a "Flynt vs. Falwell" type of case. No matter how good the deepfakes are, no reasonable person believes that's really Taylor Swift getting gangbanged by five black dudes.
There's no First Amendment protection for libel, slander, or defamation.
Telling someone not to be a famous singer or actor is not the answer.
Does someone have a First Amendment right to create a fake picture of you burning a Koran?
No, and they don't have a right to create a fake picture of you to defame you either.