None of that shit works without applying force. Libertarianism has absolutely zero solutions for preventing one bad actor from accruing resources and power, making alliances and destroying the pre-existing condition of liberty that allowed them to do so in the first place—pulling the ladder up.
How does the NAP enforce itself? It can't. It is inevitable that an organization will come along with will to power which will establish a state, and a stateless people will have no force with which to stop them. Ancapistan is an unstable equilibrium that will fall to one side or another, so the only wise thing is to influence which way it falls to benefit yourself and your people.

By refusing the power of the state ontologically, all you have done is guaranteed that your enemies acquire it and amplify it against you.