Personally, I'm all for AI training and using human artwork. I think telling it not to prevents progress/innovation, and that innovation is going to happen somewhere.
If it happens somewhere, humans who live in that somewhere will just use those tools to launder the AI-generated artwork, and companies will hire those offshore humans and reap the benefits, all the while, the effect on local artists' wages is even more negative because now they don't have access to the tools to compete in this ar(tificial intelligence)ms race.