I really don't agree with this argument because copying and learning are so distinct. If I write in a famous author's style style and try to pass my work off as theirs, everyone agrees that's unethical. But if I just read a lot of their work and get a sense of what works and doesn't in fiction, then use that learning to write fiction in the same genre, everyone agrees that my learning from a better author is fair game. Pretty sure that's the case even if my work cuts into their sales despite being inferior.

The argument seems to be that it's different when the learner is a machine rather than a human, and I can sort of see the 'if everyone did it' argument for making that distinction. But even if we take for granted that a human should be allowed to learn from prior art and a machine shouldn't, this just guarantees an arms race for machines better impersonating humans, and that also ends in a terrible place if everyone does it.

If there's an aspect I haven't considered here I'd certainly welcome some food for thought. I am getting seriously exasperated at the ratio of pathos to logos and ethos on this subject and would really welcome seeing some appeals to logic or ethics, even if they disagree with my position.