so, i'm curious, what are the best arguments for this?

the reason i ask is that it seems like the rules, as they currently exist, are valid on paper but illegitimate in practice. is it really worth it to extend the illusion of copyright protection to the rest of the planet knowing full well that it's got little hope of succeeding? or is there a way to argue that the system, as it works in the U.S. is a success?