That’s crap. Libertarianism is as far from anarchism as capitalism is from communism. One of libertarianism’s basic right is property, which is total anathama to anarchists.
You’ve done what the author has noted is done too often - to conservatives by liberals, and to libertarians by both liberals and self-styled conservatives - set up a straw man that has no basis in reality, and knock it down.
And so what I just posted is absolutely true from my own observations and private discussions with long-time Libertarians. And the vicious attacks against Sarah Palin in 2009 and 2010 from elements within the LP confirm this.
The party would be much more viable on the national stage if it got rid of the things I mentioned and its crackpots, and moved closer to Conservative values.