IANAL, but wouldn't this LLM behavior be more akin to a human re-publishing an entire book to some third party, in exchange for money?
Think textbooks. Laws. Medicine.
What's the difference? The size of quotation? The exact wording? Surely re-publishing an entire book word for word is piracy. What if I rewrite the whole book slightly? What if I publish just a part? A rewritten part?
Where do we draw the line with humans and why should the line be different with LLMs?
(I don't have answers to those questions)