At one point, the American people fought for their freedom from what they considered an oppressive and tyrannical authority: the English Crown. The American flag, in that context, came to represent resistance to arbitrary authority and the idea that government ultimately derives its legitimacy from the people.
And the Founding Fathers were not, as Prager would have you believe, a monolithic group of devout, orthodox Christians. Many were heavily influenced by the Enlightenment, Deism, rationalism, and religious skepticism. Some rejected core doctrines of Christianity outright. Calling them atheist would be historically inaccurate, but portraying them as a uniformly God-fearing Christian movement is equally misleading.
The irony is that when some Americans look at that same flag today, they see it as a symbol of the very kind of powerful, oppressive authority that the American Revolution was fought against. The difference is that ordinary people today don't have the same practical means of challenging their government that the revolutionaries ultimately resorted to.
So if anyone needs to do a little more historical research, Prager might want to start with the people who actually founded the country.
