America's Greatness, is a construct and concept of American Politics alone. It has sweet FA to do with what Americans strive for every day. Any "greatness" attributed to America over the past two hundred years, was achieved by its people, all of its people. It is THE only factor that could have made America great in any way. While I agree, that we are having an existential crisis, I do not believe it has anything to do with the concept of greatness. More along the lines of trust, integrity, fairness and equality. Our sins and complacency and failure to act in the past has reached a tipping point. It's time we act like the America we always considered it to be.