No idea. Sadly, history seems to suggest that changes this big only come after some kind of considerable pain. Maybe it's possible to slowly evolve away from it, but I doubt I'll live to see that. As I said, I'm a terrible activist. :-)
The best I've got is to just slowly try to normalize copyright subversion. I try to do that by using the UNLICENSE in the hope that others are exposed to the idea and repeat it if they like it.