I mean AI can produce a plot, but the real craft of like, the heroes journey or having a theme that comes back again and again in subplots and things like that. Humor. Irony and satire. Pacing - OMG pacing. It’s just not very good at those things.
If you want to write a Dick and Jane book with AI writing and art, yeah probably. But something like Asimov or Heinlein (or much less well known authors who nevertheless know their craft) I think an AI would never be able to speak to the human spirit that way.
Even at the most low-brow level, I can generate AI porn, but it’s never as good as art created by humans.