The lack of empathy is incredibly depressing...
Jobs have been automated since the industrial revolution, but this usually takes the form of someone inventing a widget that makes human labor unnecessary. From a worker's perspective, the automation is coming from "the outside". What's novel with AI models is that the workers' own work is used to create the thing that replaces them. It's one thing to be automated away, it's another to have your own work used against you like this, and I'm sure it feels extra-shitty as a result.
That's a huge ethical issue whether or not it's explicitly addressed in copyright/ip law.
The real answer is AI are not people, and it is ok to have different rules for them, and that is where the fight would need to be.