Oh yeah, sho' 'nuff. We have the technology:
More difficult still is the nature of the L(big L)ibertarian party. It differs from the two largest established parties in that it is not only formed around a strict body of theory but is led, at the moment, by theoreticians, much as the various flavors of Communists were in Russia before the advent of Lenin and the Bolsheviks. Parties guided by strict adherence to theory tend toward radicalism and a form of puritanism that is incompatible with the necessity of broad appeal outside that body of theory that democratic practices dictate. It is for this reason that they tend to remain minority parties, where parties subject to a degree of compromise unpalatable to theoreticians tend more toward broad appeal by attempting to anticipate the desires of the public rather than dictate them. What I'm trying to say is that with parties such as the Libertarian, or the Green, the tail tries to wag the dog.
There are two examples I can think of offhand where such an inherently minority party did succeed in either becoming a majority party temporarily or exerting its will over the majority despite maintaining a minority status - these are, respectively, the experience of the Mormons in Utah, and of the Bolsheviks in Russia. Both, incidentally, were political movements very much backed up by the force of arms. In the case of the Mormons the party was coerced into allowing dilution in the form of non-Mormon settlers; these in time came to exert a distinctly non-Mormon political direction, as did portions of the Mormon party who deviated from strict party doctrine - the consumption of alcohol, for example, now quite permissible in Utah. In the case of the Bolsheviks, the party maintained dominance despite minority numbers by ruthlessly eliminating the opposition parties - although the populace as a whole were never party members, that party enjoyed 70+ years of guiding that populace by theory. Rigidity had a price - the Mormons still thrive, the Bolsheviki are no longer with us.
So while I wish the Free State Project every success I'm not sure that is a likelihood unless the Libertarian party makes a major change in its composition and its leadership. You simply need more than theory to govern, you need practical decisions over such things as the lesser course of two evils, neither of which is compatible with theory. That is real-world politics. Potholes first, governmental structure later. The only exception to this is in outright revolution and I don't think that's where this is headed. All IMHO and subject to debate, of course.
Another to consider: the Socialists of David Ben-Gurion during the earliest days of Israel's independence, 1947-48.
Ben-Gurion had the assistance of the previous British administration, of course, for whom he was an informant, sending many of his Irgun and IZL political adversaries to the British gallows, and there was the little matter of the deaths of those killed aboard the arms ship Altalena trying to provide arms for the defence of the new state, instead of just Ben-Gurion's faction, but most Israelis were so overjoyed that the miricle had come to pass that they were willing to forgive their first Prime Minister a little blood on his hands.
-archy-/-
Oh yeah, sho' 'nuff. We have the technology: