Although I doubt my art will ever be prompted specifically due to my low popularity, I still stand with everyone that has been victim of AI art's theft.
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The process of making an artwork is the fun part of art, in my opinion. The emotions you go through, I feel they get to be part of your brushstrokes or your colors. An AI generated artwork made from stolen artworks would be a weird chimera of the different feelings and moods of the images it sampled; It would say nothing about the human who typed the prompt, nor would it make any impact on its viewer, other than the amazement at the technical prowess of the AI engine. I feel such art loses that visceral human part that makes proper human art interesting in the first place. It would be like if I wanted to communicate things I'm feeling to someone near me, but instead of saying it directly, with the intricacy of my non-verbal and gimmicks, I would instead use an AI generator for text, input my general emotion and an artist name (Say, Shakespeare), and give the result of that to the person near me in text to speech.
That is but my opinion.