This is my only reply to this so post away afterwards. Yes maybe it would be possible for his batch of idiots to over power the FBI and local Sheriffs. We'll ignore what the local people would think of that action or that any of the wounded nut cases would die, they get the Sheriff & agents in the area here's what happens next the FBI and National Guard show up with Armored cars surround the area, turn off the power and water, blast death metal tunes at them 24 hours a day and maybe use some tear gas. What happens then?
Or
If we are thinking that there will be a Government overthrow of the Constitution and Obama wants to become king (this is just pretend) The Army shows up with tanks and a few 1000 lbs bombs
Or
The FBI rounds up all their family members and jails them until those idiots get out
Sure, with a small contingent, especially rural where the powers that be don't have to worry about 3rd party damage, that's going to happen. When it's 30-50% of people in multiple towns rebelling, that's not going to happen. The Army isn't going to start shooting into civilian areas - they will refuse, whether officially or individually.
The point of 2A isn't so some rural freak can whack off to his firearm collection, the point of 2A is to a.) ensure if we ever had an adversary come to the US, that the citizenship would be sufficiently armed to offer a resistance (pointless in this day and age)
and b.) that if the Gov ever got too oppressive, the citizenship would have the means to overthrow them. I'm not willing to cede the capability of B because of animals killing each other over city territory, druggies, and the crazy here and there running around. Deal with them and stop infringing on my rights and our one real check as a citizenry.