Individual humans copying corporate products vs corporations copying the work of individual humans they didn't pay.
The confusion is that “copyright infringement is not theft” really was about being against corporate abuse of individuals. It's still the same situation here.
So it’s okay to infringe on copyright against a group of people getting paid by a corporation. But not individual artists and you should definitely not break open source copyright rules?
I think we miscommunicated somewhere. I was being sarcastic when I said cooperations were people. If we had a model of capitalism dominated by collective employee ownership I think your ethical argument might work. We don't.
The confusion is that “copyright infringement is not theft” really was about being against corporate abuse of individuals. It's still the same situation here.