[evanpw]

> I'd guess very few of libertarianism's opponents believe in socialist utopias

Just as most libertarians are not anarcho-capitalists. My point is that you don't need to believe in the utopia (in either direction) to believe that a smaller move would be positive.

> what the article suggests is about as far from an incremental step and one can possibly get...

In terms of total impact, drastically changing the rules in a region where no one currently lives could certainly be a smaller step than slightly changing the rules for millions of people, which is what most political arguments are about.