Embracing Socialism and Communism

I just don't understand the Occupy people. Many of them, though not all, obviously hate the capitalist system and want it destroyed. Why go with fighting that, when it would be so much easier and they would be much happier if they moved to North Korea, Laos, Cuba, Vietnam, or China?  Why take capitalism away from people who want it, when their communist world exists in perfect harmony in other parts of the world?  I just wish ONE would answer me why they don't move. I know I would. I totally support their rights to wish for such disastrous policies. Seriously, go experience it first hand.