America was historically founded by deists. Not Christians. Culturally speaking deism has always been our primary religious culture.
Deism is the belief in the existence of God (often, but not necessarily, a God who does not intervene in the universe after creating it), solely based on rational thought without any reliance on revealed religions or religious authority.
Deism emphasizes the concept of natural theology—that is, God's existence is revealed through nature.
Deism - Wikipedia
en.wikipedia.org
Christian deism ... refers to Deists who believe in the moral teachings—but not the divinity—of Jesus. Corbett and Corbett (1999) cite John Adams and Thomas Jefferson as exemplars.
Christian deism - Wikipedia
en.wikipedia.org