What's special about LLMs in your argument? When I was an edgy teenager in the 90s, I'd argue that it's not piracy because the DivX representation of the movie isn't bit-for-bit identical to the Hollywood master or whatever. If your reasoning works for LLMs as the tools, surely it also works for video compression.

No, that's how copyright normally works.

If I write a story, I can put it online. That doesn't mean it's ok to take that story and publish it in an anthology.