It also creates a world where developers who have created code and specifically protected it with copyleft licenses to ensure that derivative works always remain a public good are having their rights laundered away via LLMs. I fully expect the FOSS community to fold if their rights are not respected and it could lead to a software dark age.
How often does GPL succeed in bullying people into sharing code under the same license when they wouldn't have wanted to otherwise? I imagine it mostly results in wasted duplicative effort to keep GPL out of the codebase. I'm glad more permissive licenses appear more popular now, like MIT.