Radically successful? If define your life by a race to the bottom, then yes, it's successful.
I disagree. I know all my friends (Canadians) agree with me. Most people in Australia tend to see things a similar way. Europe definitely does, etc. As for New Zealand, well, the economy here is just plain strange, so I don't know.
Libertarianism and its ideals sound nice - I agree with a lot of them. What I disagree with is the limited government. It might have worked two centuries ago, but the technical advancement of society has rendered the idea ineffective. The problem is that there is too much infrastructure we're dependent on, and private industry has proven time and time again cannot be trusted to maintain it.
Unless you like being ripped off by private medical insurance companies, being in student debt for much of your life, having rolling blackouts and entire electricity grids shut down on you, possessing a telco system that is inferior in every way to Canada's, etc, etc, etc...
The right tool for the job. Anarchists and Communists can't seem to understand that, and neither do most US Libertarians.