America a nation of Christians of convenience

[True Federalist (진정한 연방 주의자)]

Furthermore, the US has never had an established Church to rebel against,

That was good for a chuckle.  While true in the literal sense, since the Federal government formed as a result of the American Revolution never had an established Church, without the rebellion during the First Great Awakening of the 1740s against the established churches of the various colonies the character of the American Revolution would most certainly have been different, assuming the Revolution happened at all.