The Glibertarian argument that bug me most of all is the pretence that they believe taxation is theft. They don't, except the anarchists of course. So what do they mean? They mean taxation is theft except if it does things I want. Or rather, taxation is theft when it needs to be and stops being theft when it no longer needs to be. The concept of pooled resources and majority decision making is ignored as inconvenient.
Also: glibertarianism is authoritarian. Totalitarian, in fact, because it is an absolutist philosophy. That makes it firstly unworkable, but also forces it to make absurd requirements on the views of others. Ultimately, the solution is, as in Chile, torture, mass murder, ect. Just as Hayek called for, repeatedly.