Why not put the issue where it is - it's a debate about public empowerment with AI vs incumbents protecting their copyrights. Especially for open source models - this situation is not about corporations. Yes, corporations are the ones with deep pockets and easier to sue, but that's just how lawsuits go, you don't waste money suing someone who can't pay up.
What is more important in the next decades - public empowerment or extending copyright to block training AI models? Can we agree to limit copyright to exact reproductions or should it cover all content generated from a model, even if when it looks different from all training examples?
I think going the copyright maximalist way will indirectly hurt creatives because all their works will be checked with the same tools we use to check AI. Anyone could be secretly using generative models. The AI attribution methods will reveal all sorts of things we don't like to see.
Of course you go onto the OpenAI corporate pitch page and it will proudly say "respects your IP by not training from it!", that's not the part we are looking to get rid of apparently? That's very real?