It'll be fine. We have more guns and bullets than most of the world combined. It's probably gonna get real messy.
Discussion
The only thing I'm doubtful is that nobody is ready to fight
That's what all the guns are for. For not having to use them. The mere threat of 90 million gun owners rising up has kept us pretty secure. But the rot is coming from the inside out so I feel ya. It's gonna take something huge to get Gen X off their asses, but if that ever happens, God help whoever gets in the way.