Understood, but as I guess I didn't state myself very well, I personally choose that it's theirs to control distribution of as well, so much as they're able.
I always think of it in a 'tragedy of the commons' sense -- what if everybody did it? What would happen then? And in the case of many of my favorite artists, if everybody pirated their work, they'd be insolvent, and likely stop making my favorite songs.
In similar comparison, what if I stood on your yard? You still have your yard. I haven't taken anything from you at all. I'm just in your yard. What if I invite 200 people to stand in your yard. What if we stand in your house?
Anyway, like I said, it's complicated, and I don't begrudge anyone for where they fall on the particular spectrum, because I by no means have what I consider 'ironclad' arguments that aren't informed by my own bias. That said, I choose to err on the side of respect for copyright.