Who would push the button? Any govt official w/a finger... remember, the president is commander in chief, and now his army has more and more unmanned "soldiers". Govt doesnt need a manned army. If a city rises up and the govt squashes it with unmanned weapons, it would be pretty stupid for another city to try to take them on
with guns. You gonna shoot at an unmanned drone 2 miles in the sky with a glock
At the minimum they would need to fight the govt outside of the arena of weapons and combat,
rendering the guns useless
Iraq and Afghanistan? We initiated + organized the govt overthrows there. A better example would be the Arab Spring countries. And even then, not comparable. You guys seem to forget, US govt has the largest cache of weapons and the biggest military in the world. 2nd amendment "overthrow the govt" talk was only relevant back during revolutionary times... we let the govt get powerful beyond our control, making the 2nd Amendment meaningless