Don't know what to tell you, man. The US is drastically more diverse than Iran, and as a result is not nearly as hegemonic. Also, the US is a lot more moderate in its views and policies than Iran. The US political party rhetoric is quite different than a lot of our policies actually are. Sure, much of the political right in the US leans puritanical, but, that leaning is a still more lip service to a small, vocal base than broadly representative of our population.