IP rights are about retribution to the creators. It might be more important to fix the retribution paradigm rather than fixing IP, which is a broken system.
At the moment, most creators are starving, while everyone, AI included, are feeding on them - big time. Successful then powerful creators only may dream about making AI pay - to them only.
Maybe it's time for some minimum revenue scheme for all creators, on top of heavy limitations on IP. Maybe AI corps can pay for that?