The argument that programmers are into piracy and therefore should shut up about theft is nonsensical. Not defending piracy, but at least an artist or creator is still credited and their work is unadulterated. Piracy != plagiarism.
Also, I think there's an argument similar to cryptocurrency companies that run like pyramid schemes. I could've made easy money doing security work for them. Yet, I felt like I'd be participating in helping them rob people or advancing their con. (Some jobs, like building assurance tools, might be OK.) Likewise, using tools built on massive, copyright infringement might be supporting or promoting that.
So, I gotta use legally-trained models or wait for legal reforms that make LLM training legal. Especially the data sets they distribute which is currently illegal, file sharing.