The alarmism in this thread is misguided. By advocating for excluding copyrighted works from LLM training, you are advocating an expansion of copyright protection. This attitude is opposite my understanding pf the hacker ethos.
Regardless, the old hacker ethos was very much about individuals creating and disseminating knowledge to empower other individuals, copyright was derided when it got in the way of that.
What does OpenAI do? It uses knowledge to disempower the individuals holding it and sharing it, and giving it to themselves to sell to companies and create power dynamics that are extremely un-hacker-like. Now knowledge has less power to set you free from the monetary or coercive power of the suits and the Government.