MAD is very real and will happen if America launches nukes at anyone so I think every American should be worried about our government deciding to use them.
I’m not sure of that really working, hasn’t been tested after all. Shootouts on the streets don’t lead to everyone getting shot. So, say, US warns “everybody big” that they are nuking someplace, but don’t want to nuke anyone else. If “everybody big” are kinda fine with it, they won’t launch nukes in response. That means there’s a place nuked and no MAD.