You're not forced to work there and use those tools. If you don't like it, then leave the job. Intentionally breaking things is unethical especially when you're receiving a paycheck to do the opposite.
Again, no one is forcing him to be there. He's breaking something on purpose. I think you should read up on ethics because this take "I don't like it therefore whatever I do is ethical" is juvenile.
That's quite the strawman. The reason it's ethical is not that LLM's are unpopular or someone dislikes them. It's ethical because LLMs introduce safety hazards, i.e. they cause harm.