On the one hand, if the people are armed, the government should theoretically fear the people and want to keep them happy.
But even with millions of armed citizens, nobody is even close to putting up a fight against the US. And they know that. And they keep shitting on you because they know you ain't doing shit about it.
And then you look at the countries that are more democratically reflective of the will of the people... and they have strong gun regulations. It's almost like maybe governments that at least work even a little don't need the fear of popular revolution to keep them in check.