While no fan of the Libertarians nearly anarchist attitude about Liberty, much of the rest of the author’s critique is ignorant, uninformed and simply in error about many of the desired or expected results of what Libertarian’s do believe.
There is no greater coercion in human existence than the law.
The founders understood the evil about it - coercion at the legalized point of gun - and considered it a necessary evil but one that must have its powers limited. They were neither purist “Libertarians” nor ignorant socialists.
Whenever there is a Republican I cannot vote for in a general election, I do not vote Libertarian either. Often because of the lack of candidates from conservative third parties, I have to sit out the general election..