From Raoul de Roussy de Sales 1939 article:

An Englishman may have doubts regarding the British Empire, a Frenchman may be discouraged concerning the future of France. There are Germans who are not sure that they represent a superior race. All of them, however, remain thoroughly English, French, or German in spite of everything. The type of American who does not accept America as it is and has misgivings about itsuch as Henry James, Edith Wharton, T. S. Eliot, and some othersbelongs to a past generation. Today one seldom meets an American skeptic, for the reason that nothing is more assuredly unAmerican than to entertain any doubt concerning the fact that somehow or other this country will come out all right.

There are many who will find such a statement too sweeping, and say, for instance, that President Roosevelt is destroying the national ideal, that he is leading the country to ruin, decadence, anarchy, and so forth. But even those objectors are not skeptical about the future of their country. Even they feel that faith in America is what makes them Americans. All their irritation would be assuaged if Mr. Roosevelt were removed, all their confidence restored. This kind of skepticism is skin-deep. It does not affect the soul of Americanism.

This faith, like all faiths, does not engender a passive attitude towards the rest of the world. Americans are tolerant to all creeds and to all convictions, but few people express their distrust and indignation with more vigor whenever some of their beliefs are offended. Few people are more conscious that ideas may be more destructive than guns. And rightly so, because if any unorthodox creed really implanted itself in Americaif the day came when an American citizen could really feel that his country was not following the right course and that a change was duethe political disunion thus produced would have unforetold consequences. The one serious crisis of this kind that America has known, the Civil War, showed the frightful results of a real political conflict. It nearly made two nations out of one. But this experiment in dissension seems to have served as a lasting lesson. It is difficult to believe that it would be repeated. Unity on the fundamental principles of politics is indispensable to the life of this country. The presence of even a small minority who would question the validity of Americanism would attack at the very core the concept of American nationality itself.