We have weapons here specifically to fend off tyranical government. NOT for sport or hunting. Those are just nice biproducts of the 2A. Also, the 2A specifically defends ownership of military weapons. You should read it sometime. While you are at it, read the 19 pages of the American Constitution. Then compare it to what we have today. Then you might understand why the AR15 rifle has eclipsed ALL other designs in combined sales for the past 8 years.
A government that does not trust its citizens to arms is nothing more than a dictatorship and does not have citizens only subjects.
Japan comes to mind. Just today a crazy killed and wounded dozens of victims with just a knife. Should we be spreading our butter with spatulas?