Anarcho-Capitalism, left leaning and Anarchist Libertarianism is just as naive and stupid as Socialism or Communism. How exactly do you intend to deal with people using the freedom they gain in your society to overthrow your way of life? How do you keep undesirables from strong-arming the economy and abusing consumers much like how we see with major sudo monopolies like Google, Amazon and most banks do today? How do you keep foreign businesses undercutting your local economy? How do you keep companies from hiring in mass foreign labor over American labor for whatever reason? To me Liberterianism really only makes logical sense when Nationalist policies are applied to it and no I don't think that's a contradiction. If you want to have a truely free market and not have it completely shat on and destroyed in an instant I think economic protectionism, scrict border security and a nationalist foreign policty are extremely important. I think this is even more abundently clear seeing the digusting Marxist/Communist/Socialist revolution being allowed to happen in the U.S. today.