The Christian right is trying to rewrite the history of the United States as part of its campaign to force its religion on others.
The hate-religion left is trying to rewrite the history of the United States as part of its campaign to ban religion and force their immorality on others.
You can't read the documents of the Founding Fathers without seeing common references to God, to a creator, to divinity, etc. The First Amendment was written to prevent the establishment of a state-sponsored religion such as the Church of England which they fled. They didn't intend to scrub religion from the public square the way the ACLU and the other religion-haters have conned the courts into believing.
We are guaranteed freedom OF religion, not freedom FROM religion. That's what the Founders wanted and the left's attempts to rewrite history is the real threat, not the desires of the Christian Right.
Ask yourself why the Soviets and the Nazis sought to ban religion as one of the first acts of their totalitarian power? Because they want nothing to be worshipped above the State. The State is their religion and it is the religion of liberals. Organized religion whether it be Christianity, Judaism, Hinduism, Islam or whatever instills morality into people and they are harder for the State to control if the demands of the State are met with moral outrage.
SOMEBODY'S beliefs are always going to be pushed in a debate. What you should be asking yourself if you are listening to the hate-religion left is whether they are not, in their own way, trying to force THEIR religion on you to replace the religion they seek to oppose.