The primary point I was going to make however, and I am not sure if I made this here before, so indulge me if I'm repeating myself, but text generated by an AI can not be copyrighted. You, as a human, have copyright in your own work, but you don't own anything an AI produces. So no publisher will touch you, because you don't own the work. Technically you can't even upload it to KDP or Ingram either as they all have a checkbox for you to assert that you are the copyright holder of the work. And if AI generated that work, even if you'd substantially rewritten it afterwards, you don't own it. No one does.