The last I saw, there are 90 million gun owners who own somewhere around 400 million firearms, 75 million of which are rifles. Yamamoto was right when he talked about a rifle behind every blade of grass.
Now percentagewise you are making me feel downright greedy.
Yamamoto wasn’t developing drones and mini-drones, placing surveillance cameras at intersections of every main urban road and the interstates, and developing armed robots to deal with those behind the blades of grass.
Technology enables folks to be wiped out before they ever physically see or engage anyone. It would have to happen lightning quick across the entire nation with tens of millions of folks acting together.