Over the past few decades, the religious environment in this country has been changing. Rather than being a country where nearly everyone belongs to a Christian church, we are now a country where many belong to other religions, and to no religion (whether they be agnostics or atheists). This new openness and tolerance in beliefs is a healthy thing. By living with people of different beliefs, we learn that they are not so different from us and, in a few cases, we may even learn that our own beliefs have flaws. 
    Understandably, conservative Christians don't like this situation. They want to keep things simple and have everybody belonging to the same faith if not the same church (It always amazes me how the members of certain Christian churches refer to themselves just as Christians implying that the millions of members of other Christian churches are not real Christians). 
    An argument they commonly use to support this idea or returning to the time when we were supposedly all Christians is that our country was founded by Christians, on Christians principles, with Christian leaders, etc. History says otherwise. It is true that our founding fathers were all men of faith in that they very much believed in God, but when it comes to being members of a Christian church, that is something else entirely. In 1832, Episcopal minister Bird Wilson complained that “Among all our presidents from Washington downward, not one was a professor of religion, at least not of more than unitarianism.” Now when this minister says “professor of religion”, he doesn't mean it as in a college professor, but one who professes belief in a religion. So it appears that our founding fathers, while very much believers in God, were not prone to favor any one church or religion over another and were opposed to the establishment of a state church. So if some Christians think we should return to our beginnings, we our on our way with our increased tolerance and understanding of different beliefs.