bigLibertarianism is an infantile philosophy.
It's notable that, for all that Libertarianism is such an apparently marvellous system, no-one's ever even had a cursory stab at implementing it. Which is surprising, if the sheer wonderfulness of it, as described by its proponents, is to be believed.
Personally, I reckon it'd end up being like the society in Fallout 3, only without the entertaining addition of energy weapons and Mr Handy.
i.e. He who has the most guns, wins.