[zarf]

Secondly, you grossly overestimate the actual effects of realistic usage of such munitions.

I disagree. Cities would be involved.

The government is barely able to deal with natural disasters. A large scale nuke exchange would be untenable.

It's simply not an option between civilized nations.

[GOP_1900AD]

So you'd be the one crying if some supposedly civilized nation attacked the US in an act of great war. Nothing is impossible. You simply refuse to face it.