You could answer that question by disbanding the military. If you are overrun, then you were wrong to not defend yourself.Furthermore, do the services offered by the armed forces protect the American citizens, or does it only offer A SENSE OF SECURITY?
I have lived my entire life without a gun. My judgment that I was safe had been justified. And the families with guns in their homes have suffered more gun casualties that those. I always felt safer in a home with no gun.
You might say that that is because other people have guns. But my neighbors in Mexico are unarmed, and I'm safe here, too - no doubt safer for them being unarmed.