People who use their own tools and own their own product (EG artisans in Marx’s time) are members of the Petite Bourgeoisie. I think a Marxist analysis of the class dynamics would be fruitful here, but it’s beyond me.

Please don’t. Marxists, at least Marxist-Leninists, tend to start talking increasing amounts of nonsense once the Petite Bourgeoisie and Lumpen get involved.

In any case the whole thing is (as Marx would tell you, but Marxist ignore) a function of one’s societal relations, not of the individual person, or job. That relation might change from hour to hour (e.g. if you have a dayjob), and “does not have an employment contract” doesn’t imply “does not depend on capital for survival” – it’s perfectly possible as an artist, or pipe fitter, to own your own means of production (computer, metal tongs) and be, as a contractor, in a very similar relationship to capital as the Lumpen day-labourer: To have no say in the greater work that gets created, to be told “do this, or starve”, to be treated as an easily replaceable cog. That may even be the case if you have employees of your own. The question is, and that’s why Anarchist analysis >>> Marxist analysis, is whether you’re beholden to an unjust hierarchy, in this case, that created by capital ownership, not whether you happen to own a screw driver. As e.g. a farmer you might own millions upon millions in means of production, doesn’t mean that supermarket chains aren’t squeezing your bones dry and you can barely afford your utility bills. Capitalism is unjust hierarchy all the way up and down.

Well, you can’t remove an image from a trained AI model. It’s not in there (if everything has worked). So what now? If that means that the model becomes illegal, then you just can’t have a model trained on such a database.

I also can’t possibly unhear this, doesn’t mean that my mind or any music I might compose is illegal. If it is overfitted in my mind and I want to compose music and publish that then I’ll have to pay attention that my stuff is sufficiently different, have to run an adversarial model against myself, so to speak, if I don’t want to end up having to pay royalties. If I just want to have it bouncing around my head and sing it in the shower then I might be singing copyrighted material, but there’s no obligation for me to pay royalties either as many aspects of copyright necessitate things such as publishing or ability to damage the original author’s income.