Humans usually add their own style to things, and it’s hard to discuss copyright without that larger context along with the question of scale (me making copies of your paintings by hand is not as significant a risk to your livelihood as being able to make them unimaginably faster than you can at much lower cost). Just as rules about making images of people in certain ways or places only became critical when photography made image reproduction an industrial-scale process, I think we’ll be seeing updates to fair-use rules based on scale and originality.
Humans can also come up with their own styles and can draw things they’ve never seen, which ML models as they currently exist are not capable of (and likely will never be). A human artist who has lived their entire life in the wilderness and has never trained themselves with the work of another artist will still be able to produce art with styles produced entirely by personal experimentation.
ML models have a long way to go before comparisons to humans make any kind of sense.
