My point is that photography is essentially a simulacra of reality, yet it unexpectedly created its own art form and influenced existing ones. So will the use of LLMs for generation
I don't see why this can't happen with AI, or at least I am not certain like you it can't happen
But from what I saw there are less living horses today than 200 years ago, and although that just a proxy for horse riders I believe the same applies for painters, especially non-hobbyists