Well, we are a Christian nation. We aren't Judeo-Christian because that title alone is Blasphemy. In Christianity, Allah, Satan (insert 1000) more names, are not God. Jesus Christ, per the bible isn't God, he is the 'Son' of God but tells you not to worship him yet somewhere along the line we setup churches where we kneel before an effigy of his crucifixion and pray to him.
If you read the bible, the entire organized religion is backwards anyways.