I challenge anyone to name a single principal unique to Christianity that is one of the US democracy.
The myth that the US was founded on Christian principals is one that needs to be brought into light if there is to be any moral progress.
Being Christian does not make you a good person, and this realization is why so many people are leaving religion and checking "none" when asked about religion.
At some point in the distant past, the universe went through a phase of cosmic inflation, Stars formed, planets coalesced, and on at least one of them life took root and developed into the human race, who conquered fire, built societies and developed technology .
All of that so we can argue about nothing.