So then you say, "I think these guys are crazy, so I'll call them extreme". Now you have extreme right-wing. The only problem is that libertarians are not extreme right-wing. So the designation is incorrect because you've restricted yourself to only left/right rhetoric. Libertarianism is not extreme right-wing. And you just create a confused term (one already used for other designations) to try to apply it to libertarianism because you want us seen in a particular light. You play think that you do not need to clarify and thus need another axis; but you've created confusion and incorrect categorizations because of it. And if you think you've proven anything, than you are only looking at this from a single point of view instead of the whole system.