I think you are more caught up on terminology than the fact that we probably agree on more than we disagree on. Did you actually watch the video? Like it or not these people have taken over representation for the left. They may not represent classical liberalism but they are certainly hijacking the leftist narrative. In my opinion Voluntaryism is neither left nor right, and really has very little to do with government, nor should it. The government only knows how to operate thru force and coercion. Unfortunately in "swallowing it's own tail" as you say, it is going to tear down a large portion of civil society as we know it in the process. It is better that we replace the current system by displacing it with a better one, not by burning it down.