Actually, you are wrong. The capital of the artist is to physically create art. AI has to be fed physically created art and the told by humans what it is being fed. AI is not 'inspired', it is statistically driven by a human written progam, using mapping of human made work, labeled, tagged and defined by more humans to render a shopping list input by another human. Humans are using programming technology, written by humans to exploit other humans physical work.
"Capitalism" is selling the right itself to someone else, not earning royalties from it. IP rights are government creations; it's not like you signed a contract with each royalty payer.
It would seem that it opens you up to the problem of other people deciding whether you're an artist or not and if so whether you're a good artist.
The same of course happens with capitalism, where it's your customers doing it. (Or in the case of books, which are almost never profitable, the VC-like publishers deciding to give you advances.)
So of course the reason modern mixed economies are good is there's more than one set of people that you may be able to convince to fund you.