What makes you think we haven’t?. ;0)
It was a rhetorical remark. I realize that sober Americans have.
But that loud, whining, mealy mouthed minority ought to go take some arms training, and begin to take their citizenship seriously, as opposed to predicting the doom of the very constitution that bestows upon them the responsibility of protecting it. It's a thin line between a right and a responsibility.
That was a mouthful, but I hope I make my point.