If I enter 'Mickey Mouse' into an ML-TTI thing like Craiyon (Dall E mini) do you think I will be able to sell the resulting image on a Tshirt?
No, I won't, because Disney has fancy lawyers, the average open source developer hasn't. What you are saying is: Screw little people, let M$ make their money.
Either copyright is for everyone, or for no one. I prefer the latter, but this is not the world we live in.