Cite one legal case where an AI company trained on a particular work, and the judge ruled that they quote-stole it-unquote.
Music conglomerates have money and their lawsuits will probably settle the issue.(unless they settle) That will be applied for all copyrighted works, regardless of the medium.
I believe going against the big guys is the reason why the big ones don't yet have music generation LLMs.
No one is stealing anything. It's not theft. There has been no crime. None of this is anywhere near criminal law.
I could make a more nuanced argument on copyright infringement. But to make that steelman, I'd need to accept a too large overton window shift, so I'll decline to do so here.
The problem is that you're putting it in the wrong legal framing, and it just won't fly. Willing to engage, but not on these terms.