If Hitler himself arises from the grave tomorrow and directs an immense army against all the other peoples of the world, we are nevertheless obliged not simply to lament the necessity of fighting him, but to atone for it. If necessity may sometimes suspend temporarily that which is actually right and just, it never abrogates it.
Is the (potential) collapse of America a tragedy? Yes, in the Classical sense. The Hubris since the Revolution creeped in inch by inch. By the time the so-called “Greatest Generation” had triumphed via war, Pride (aka Nationalism) assumed the whole consciousness of America. An already disgustingly violent Empire then ran with renewed vigor from there on. Remember that “He who delights in conquest delights in human pain.” and “The problem after a war is the victor. He thinks he has just proved that war and violence will pay. Who will now teach him a lesson?”. The atonement for the sin of Empire is written over and over again in human history. The only good part of all the chest beating and ground thumping is that one day no one will ever remember a single iota of any of it.