I don't agree to your premise. Humans can consume creative works and be influenced, this is not in question. Unless one is an impressionist, they aren't going to try to recreate exactly the works done by the artists they have been influenced by. Even if an artist does something inspired/influenced by, they have pretty much stated that. Musicians cite prior bands, as do writers, painters, etc all credit those influences.

I'm probably just a curmudgeon, but I don't understand the point of Copilot. So I'm probably not the best to opine about it. However, I am very opinionated about copyright in manner that typical flows against HN group think.