Cool, so you're fine stealing art from artists (or infringing the rights of artists, as you seem to prefer), and you're fine if billionaires steal art in support of capitalism. Got it. I agree the law is stupid, but stealing from artists isn't the correct way to fix it.

And again, because this is an Anarchy community: that's not anarchist thinking, that's capitalist thinking, and quite privileged at that.

It would be great if we could make a practical distinction between personal and private property, but until we deal with the powers at the top, the artists at the bottom with the rest of us still need to eat in the meantime in this abusive system.

Copyright is a state-mandated monopoly on reproducing a specific creative work.

I agree.

Violating the state's rules about that monopoly is not "theft".

Wrong, because you are operating from a non-capitalistic mindset. The artist is not suddenly able to reap the benefits of socialism or communism simply because you wish the economic system to be different. We can distinguish between public, private, and personal property all we want, but they're nonetheless still unrealized concepts. The artist must still eat, and depriving them of their work by feeding it into a plagiarism machine is not a step towards tearing the old system down; it is in direct support of it.

So you can handwave and be a legalese pedant all you want, but the reality is that copying art in this current economic system directly deprives the artist of their livelihood. Sounds like theft to me.

ETA: if you don't care about artists, then just say that. At least it would be honest.