And if you could allow them to leave without taxing them 50% of their wealth on the way out the door, a lot of them would go. You pretty much hit the nail on the head in 2 directions. People are not given the option to vote with thier feet or their dollars. I know I wont ever need social security (if it even still exists by the time I want to stop making money) and yet I can not opt out of it. Why? The reason why is I'm not paying into my own retirement at all, I'm funding someone elses. I'd even happily give up everything I've already paid in if I could just stop paying in the future.

Also this notion of a well protected society is total bunk. I could have paid $50K in taxes last year as a self employed guy, but if my business collapses this year and I don't have a wife or children there is no safety net for me. The government isn't going to swoop in and pay for my rent and bills while I get back on my feet. Something I could have easily accomplished for myself with those same $50K. The federal safety net pretty much excludes childless single men entirely.