Wing...all your points are accurate, but you're overlooking the 400 pound gorilla in the room. That is the GUN SHOW LOOPHOLE, which allows any bubba, psycho, felon, gang-banger, or ISIS inspired zealot to obtain legally, in 33 of the 50 states, a semi-auto assualt weapon PLUS all the ammo rounds you could want.
You mention Switzerland. Well, sorry, but while they DO have one of the highest rates of gun ownership in the world, they are ALSO highly regulated. For example, they have background checks JUST TO BUY AMMO. Psych problems are looked at....yes, just to buy a carton of .22 cal bullets for rabbit hunting.
Yeah...so much for a "well regulated militia" as provided by the 2nd amendment. SMH.
As far as defending ourselves from King George...well, by that logic, all households should have a missle battery in their backyards, and an M1 Abrams sitting in the driveway. 😏