This is isolationist bulderdash and nothing to to do with "libertarianism". Notice your post doesn't include any writings from famous Libertarians or Objectivist? That's because those ideas assumed by this writer just don't exist in libertarian beliefs.
The best organization and order come from free will of people freely trading. Read "The not so Wild West".
This idea that somehow a select few can make the rules and regulations that best represent everybody the best is just a fallacy notion of tyranny. Read "The Tyranny of Good Intentions"
Libertarians believe each individual has the right to act, think, move individually but do realize that the actions of the choices of many effect them. They are not isolationist who are not influenced by others but oppose the idea that they must make choices by coercion. Fish has nothing to do with people.
There isn't one libertarian writer that believes each is an "island" to his own.
You may want to read up on the writing of Ludwig Von Mises, Hayek, and others before believing the assumptions of liberty, free choice haters of those who support, "control".
Omnipotent Government, by Ludwig Von Mises, Economics in one Easy Lesson by Henry Hazlit.
Actually here is a simple article that destroys the silly myth portrayed.....