I think it's interesting that there is a growing debate in this country over whether or not we are a Christian nation, whatever that means. I don't think this is the kind of debate where there can be a winner or loser.
What is really interesting is that we are having a debate over it at all. Forty or fifty years ago nobody, even the most devout atheist, would argue that America was not a Christian nation. We are certainly still a nation that promotes Christian virtues and ideals. Whether that will remain the case is a good question for debate.
Nobody is arguing that Christians don't have every right to practice their faith or even evangelize, as long as they don't impose upon the rights of others to believe differently. It is the right to force Christianity on everyone and discriminate against those that refuse it, that the Wing Nuts are afraid of losing. It is a well grounded fear. Without institutionalized Christian dominance, nobody will go along with the shit they are shoveling. It might be different if their beliefs had anything to do with the real teachings of Jesus but they don't.