Ho
w do you "possess" and idea? 
That's where the whole IP thing breaks down. It's one thing for someone to break into your home and try to steal your stuff. It's another thing if your idea is spread across the planet, and you're trying to control what others do with it once it is in
their possession. Now
you have to invade
their home (computer hard disk whatever) and try to take possession of what you were no longer possessing.
Anyway, this is short sited. There are other ways to make sure content creators are paid other than government force. It just takes a bit of imagination. I saw a video (on YouTube of course) where someone talked about the idea of content creators selling a bit of their screen real estate to advertisers. (Wish I kept a link so I could post it). Under that kind of scenario, it doesn't matter how many times people copy it. In fact the more copies made the better.