A third party is perfectly viable and possible in a first-past-the-post system. What you need is a strong regionlal base.
Look at the Dixiecrats. If a group could control the state legislatures of a half dozen states, throw in four governors and maybe three or four senators, voila you have a party.
I get your point. I guess what you are terming as VIOLENCE I would term as necessary coercion. Its pretty much the same thing… six of one, half a dozen of the other.
I guess I accept such necessary coercion - or even violence - and accept that every single organized government in the world needs it to operate. Of course, I would agree that such powers need carefully crafted limits and citizen protections. I think we have that here - with obvious flaws that pop up in certain cases from time to time. Again, nothing is perfect when it is the work of humans. So I accept that.
Truthfully, I do not see what that understanding has to do with getting rid of national parks, or Social Security, or Medicare, or the FDA, or a laundry list of other government programs that many libertarians seem to rail against.