America is not a Christian nation, the founding fathers on multiple occasions made sure to say this.
John Adams "the Government of the United States of America is not, in any sense, founded on the Christian religion"
Glad you asked.
America is a Christian nation, and our culture reflects the christian values of faith, freedom, equality, as stated in the declaration of independence.
If you need examples, look no further than our holidays:
Thanksgiving: Inspired by giving thanks to the lord for the blessings he bestows on us.
Christmas: Celebrating the birth of Christ.
Fourth of July: Celebrating our freedom and independence
Mothers and Fathers Day: The 5th commandment.
MLK Jr Day: Honoring a civil rights icon who promoted equality and how all men are created equal (not equity, that’s woke communist shit)
I can give more examples but I think you get the point.