Are you a lawyer that has tested this in court, or is this just what you want the reality to be?
As someone with lots of open source code out there that has likely been used as LLM training data, I'm very sympathetic to this point of view, but that doesn't seem to be the legal reality. Much of this has not been fully tested in court, but it seems likely that LLM training is not copyright infringement, as long as the training material itself was acquired legally.
I mean, its theoretically possible that a court might rule that if an LLM outputs an exact or lightly modified piece of copyrighted work, that it won't be copyright encumbered. We'll end up in a situation where copyright doesn't exist anymore, because you can always claim that its been laundered through an AI. This seems terribly unlikely to me, because 1:1 transformations (eg copying an image into memory) are already established to count as making a copy for legal purposes, there's strong precedent around piracy
There's also been court cases where material has been found to be infringingly used, eg song lyrics, so the case where copyright ceases to exist doesn't seem to be coming through yet, thankfully. It'd be the most staggering upheaval of copyright of all time if this doesn't turn out to be true