I don't worry about art theft as much as about instances that use AI to conceal agitprop bot posting. AI art is... "neat," it won't ever surpass the quality of its sources, and really it's just a fancy copy and paste that anyone could do (less well) clipping out the art themselves. But AI empowered bots can overwhelm us in utter bullshit, turning our community into just another propaganda engine for venture capitalists.

Either way, keeping AI out of the Fediverse is advisable.