I think this is an easy distinction to make: copyright is bullshit and knowledge should be free. I have no problem with pirates sharing information freely. I do have a problem with a company taking someone else's work and profiting from it. The only thing worse than copyright as it exists is copyright that can be selectively ignored when the powerful will it. Attempt to use copyright to promote Free software with the GPL? Ha, nope, copyright for me and not for thee; I'll train on your code and sell it back to you. You want to preserve access to a game or film that's unavailable or unplayable? Time to send the C&D and destroy you. Only bad things are possible.

Until we progress as a society to the point that we can put this system behind us we should at least fight to make enforcement uniform. In fact, uniform enforcement is probably a good starting point for arguing for abolition, as the pain of that enforcement is felt by proles and elites alike.