Let's said I use AI to write a book, in that case, AI will just grab what someone's else wrote.
Let's said I use AI to Write code, AI will just copy someone's else code.
Let's said I use AI to make art, AI uses Someone's else art.
Then, let's said I sell the book, use the code and make nft's with the art, since AI "did it" I don't have to follow any license or give credit to anyone.
About using only public information, that should be an opt in, but instead AI companies are just taking public internet, putting it inside a can a selling it, you like it or not.