About your 1. point: you can't possibly know that future models will be trained exclusively on synthetic data without any hit to performance. It is also not easy to reword the entire copyrighted training corpus without introducing errors or hallucinations. And you assume that this is just a fact?

Your second point reminds me a bit of 'War with the Newts' where humanity arms a race of sentient salamanders until they overthrow humanity. How could we not arm our newts if Germany might be arming theirs?

I also think basically everything else you wrote is wrong.