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?

"group of people getting paid by a corporation" they are not involved at all. Corporations are their own person's, remember.

It's almost like the real problem is asymmetry and abuse of power.

Who is being “abused” by you not having access to other people’s content in the way you want?

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.