As people come to grips with the decline of American power and begin to realize that, in fact, we aren't free or special or really living up to any of the high ideals that are described in some of our founding documents and rhetoric you will see more arguments like these.
At the root of his critique is that he really does believe that we are special and this place can be magic. It isn't and it won't be.
EDIT: Libertarianism is a dying hooker licking 9V alkaline batteries for that metallic taste of excitement every time it gets to posit a counterfactual notion about some basic human tenant. It's a foolish sounding semi-sorta ideology when espoused by the middle class who are algorithmically incapable of seeing any benefit from it's implementation and a smug blanket of self-serving satisfaction for the wealthy who use it to make their social position intellectually palatable in a "dinner party" conversational sense.
While the wealthy capitalists in this article may really entertain ludicrous thoughts of building a treehouse-fort-island where they are the biggest bully, they don't do so in any way that might upset their own apple cart's on the way to markets created and policed by a political process that they go out of their way to openly despise but are intravenously connected to in ways that conjoined twins sharing a single heart would consider too close for comfort.
Libertarianism's philosopher's are the unpopular clowns at the children's birthday party of society hoping that bending their "business innovation's" into balloon animals will convince the starving attendees to actually enjoy watching them eat all of the cake. "Look it's a lion! Rawr!"
EDIT EDIT: COME ON. You know that's good. Come on!