Seriously, I feel like recent history has shown so many flaws in the theory of guns protecting citizens from the government.
I remember during the tsarnaev brother's attacks the crazy amount of APCs and armored vehicles that were in the arsenal of just the police. What the fuck is 5.56 in the hands of some regular Joe going to do against even the lightest armor.
Not to mention the fact that it's not the fairytale tyrannical government vs the righteous citizenry. Turns out it can be subversive citizenry going up against other citizens.