“America was not founded as a Christian nation”
We were not.
Yeah, we were. It was not an official state church if that is what you mean. But it was utterly steeped in Christianity from it’s very founding. It’s disingenuous to pretend America was not a Christian nation in character and did not continue as such until the modern era.
The foundation of America was solidly Judeo-Christian. There is no State Church. (Thank you, John Leland and James Monroe.)