That's not what the Founding Fathers said.
""While we are zealously performing the duties of good citizens and soldiers, we certainly ought not to be inattentive to the higher duties of religion. To the distinguished character of Patriot, it should be our highest glory to add the more distinguished character of Christian."
--The Writings of Washington, pp. 342-343."
"John Hancock
1st Signer of the Declaration of Independence
"Resistance to tyranny becomes the Christian and social duty of each individual. ... Continue steadfast and, with a proper sense of your dependence on God, nobly defend those rights which heaven gave, and no man ought to take from us."
--History of the United States of America, Vol. II, p. 229. "
"Samuel Adams
Signer of the Declaration of Independence and Father of the American Revolution
"And as it is our duty to extend our wishes to the happiness of the great family of man, I conceive that we cannot better express ourselves than by humbly supplicating the Supreme Ruler of the world that the rod of tyrants may be broken to pieces, and the oppressed made free again; that wars may cease in all the earth, and that the confusions that are and have been among nations may be overruled by promoting and speedily bringing on that holy and happy period when the kingdom of our Lord and Saviour Jesus Christ may be everywhere established, and all people everywhere willingly bow to the sceptre of Him who is Prince of Peace."
--As Governor of Massachusetts, Proclamation of a Day of Fast, March 20, 1797. "
America was founded as a Christian nation.
Whatever you think should be, is not what was or is. That's probably a good thing.
The Founding Fathers' way was was solid, because without religion and the Bible, there really is no sturdy foundation for a moral standard.
In fact, there really is no moral standard at all without God and The Bible. God established the moral standard and it is absolute.
Some people don't want to recognize that, but that doesn't change how it is.
I'm here to testify that how the Bible says it is, is exactly how the world works, like clockwork.