He is certainly right that this has not occurred to the average citizen, because the majority of the country is blind to its own history. The American "nation-state" represents a rejection of the Constitution (especially the Tenth Amendment), effected by the extremely bloody, destructive, and unnecessary, War Between the States. Lincoln was the American Bismarck, uniting -- "subduing" is probably a better word -- the sovereign states into provinces of his empire. To a Constitutional conservative, the U.S. nation-state has been as much of a disaster as its European counterparts.
The answer is not a bigger and better super-national state, but rather a return to provincial (or state) sovereignty -- distributivism. The partisans of one-Europe (or one-world) government conveniently ignore the fact that many "nationalists" are, in fact, "provincialists."