of the American zeitgeist (then, via Kate Smith) and now, via the Murican one (via that lengthy contemporary list.)
Clearly Irving Berlin was more conversant with American-psyches than any trainer of Psychologists;
his ken magnified by his vast musical talent would, I think dwarf Gōbbels' mere word-salad talents by an order of magnitude.

The vignette is complete: it becomes the only-anthem-you-need for going the whole-hog (including the postage)
into the fantasy-Murica today inhabited by (that list.) It's bulletproof, completely impervious to any rebuttal,
correction, (wry-aside) or full-on frontal attack. It's Shrub-writ-Large:

You're WIth US(A) or You're against US(A)