And you see no coercion in this ill-conceived scheme? "This tax is 'voluntary', but if you don't pay it someone will certainly come along and take your property from you." What world do you live in exactly?
That kind of concept would work with enough mobility to just leave states you disapprove of. I like to think a huge amount of political inertia in the last 30 years has been due to the lack of any new frontiers to settle. And it is hard to voluntarily withdraw from a state if that also means you have to somehow get accepted into another one, since almost every square inch of habitable land on Earth is state controlled, even Antarctica.