There's nothing to be done, nor should be done, for anything someone individually creates, for their own individual use, never to see the light of day. Anything else is about one step removed from thought policing - afterall what's the difference between a personally created, private image and the thoughts on your brain?

The other side of that is, we have to have protection for people who this has or will be used against. Strict laws regarding posting or sharing material. Easy and fast removal of abusive material. Actual enforcement. I know we have these things in place already, but they need to be stronger and more robust. The one absolute truth with generative AI, versus Photoshop etc is that it's significantly faster and easier, thus there will likely be an uptick in this kind of material, thus the need for re-examining current laws.