If someone wants to learn stuff from your work - they will and there's nothing that you can do about it. I can train a LoRA on someone's artstyle in a few hours on my PC. You can rent a GPU and do it under an hour. It takes more time to curate, process and caption images than to actually train the AI. It's that easy. So yeah - the cat is out of the bag and you will have to adapt.
I can download a whole set of movies even tho the piracy cat’s been out of the bag for a while. But if i monetised it i am in a hell lot of trouble. My debate points are not about stopping ai. They are about how we shape it’s use as a tool.
The difference is that AI training is not illegal and styles aren't copyrightable. So you can already make stuff in the style of some other artist and then sell it.