Was Post-war Anti-communism Ginned up as a Device to Support "We're Number One" as a FP Goal?

FP=foreign policy.

... partially as a means to justify primacy, and this culture, in turn, helped shape the ideology of generations of Americans. — Daniel Bessner (@dbessner) December 9, 2018

...whereas your research suggests it was an ex post facto justification for American supremacy. — David Walsh (@DavidAstinWalsh) December 9, 2018