You're making a false comparison. People who prompt an "A.I. art" algorithm aren't doing anything, the algorithm is and what the algorithm is doing is scraping data, i.e., art (made by humans). A camera or brush, whether analogue or digital, is still being manipulated by the human. If a guy puts a comic book in a xerox machine it doesn't make him Jack Kirby.
The comparison is valid, and to think otherwise is delusional, and you will realize sooner or later that generative models are manipulated by a human being like you manipulate a camera or a paintbrush. What you actually want to say, though not explicitly, is that with AI art you can get good results with little effort compared to, say, using only CSP or Krita, and that somehow this would make the result less "art" (or even not art at all), but it has been a long time since "hard work" was a requirement for making art.
Also no, a xerox machine does not create transformative works ahah
