Why So Little Mayhem?

A knock on my front door. My wife opens it, and a guy in a ski mask with a gun drawn says that he’s here to take Craig Shields into custody. My wife asks if he has a warrant, and he says no. I hear this conversation from my home office. I have a loaded shotgun in my closet (which I don’t).
Under these circumstances, I would slither down the hallway with my gun, swing around to the front door, and put a hole in the guy’s chest the size of a grapefruit.
The ostensible reason for our Second Amendment is to protect our citizenry from an abusive government.
I seriously do not understand how deaths like this hypothetical one aren’t happening all around this (formerly great) country.
