Any type of system that a statist advocates that involves some form of "democracy" or "representation" rather than outright violence (might makes right), is a system that at some point must have been voted on unanimously by its members. In order to have a democratic election, you must first have agreement on the democratic process itself. The regression never holds to any actual unanimous consensual agreements.
So, basically, there is no proof of any consent to be governed if you as an individual have not consented to it. There's simply no getting around that fact...except to effectively say, "Comply or die," or "Love it or leave it" if you're allowing them to escape. Both are equally morally repugnant and logically inept arguments.