When you annoy Americans you mean. The rest of the world doesn't respond to doorbells with shotguns. Yay America.
Fortunately the world has guns to stop the Hitlers of the world and form nations like the United States. Anyone who seriously thinks guns are only used for evil is living in a fairy tale. Even if there were no guns, it would be a bow, or a sling shot, or throwing rocks, or sticks. Violence didn't start with the advent of the gun.