However, I would acknowledge that pretty much all armed and violent revolutions go through a period of anarchy in one form or another. Is that what you are afraid of? An actual revolt and the transition period? Certainly you are not afraid of the stated libertarian endgoal of a return to a constitutionaly bound republic form of government. Or is that unfeaseable in this point in history in your experience and thoughts?
Personally I still think that we can work with in the system to restore those freedoms via elections, apparently there is 50% of registered voter that do not vote, if they decided to vote for a candidate with some dignity and sound ideas then the republican/democrat cult of corruption and greed would be trounced. But that isn't going to happen for with the current Libertarian causes, IMHO. So you really have nothing to worry about.
"The voluntary support of laws, formed by persons of their own choice, distinguishes peculiarly the minds capable of self-government. The contrary spirit is anarchy, which of necessity produces despotism." --Thomas Jefferson