Now that I have your attention, do you find the idea of requiring science to be taught by the church to be patently absurd? Ridiculous? If so, then why would you support the merging of the church and the state in a democracy?
Organized religion is, by definition, an authoritative power structure that is antithetical to the concepts of freedom and freewill required for a robust democracy. The founding fathers of the U.S. Constitution—all of them “Christian” men—knew this full well when they envisioned our democracy as a secular form of government, since no theocratic dogma with the power to do so has ever tolerated equal representation for a competing dogma, theocratic or otherwise.
As I have noted before, the Kybalion is quite accurate when it describes theology as the “attempts of men to ascribe personality, qualities, and characteristics to the unknowable.” Since the unique descriptions of personality, qualities, and characteristics that provide the foundation of any specific theocratic dogma are scientifically unprovable, and are easily rejected by open, rational analysis, then any system that promotes theology as a window into the truth must itself reject the right of open, rational analysis to coexist. Since the right of open, rational analysis is a fundamental and necessary requirement of democracy, then democracy cannot exist in a state driven by theology. Indeed, the preferred state of government for theocratic dogma is not one based on democracy, but one based on authoritarianism, a system to which it has historically aligned itself over and over again, whether through monarchy, dictatorship, religious tribunal, or the claim of divine right.
This is not to say that a democracy should reject the system of moral structures represented by theology, since enforcing non-belief can be just as authoritarian as enforcing any one belief. But the moral structures that make up a democracy should be based on the intersection of all beliefs, and this can only happen when the underlying governmental structures do not favor one theocratic dogma over another—when a government is secular by design.
So, whenever you hear that the U.S. is a Christian nation, you should strongly disagree. We may be a nation whose population largely believes in Christ, but we are not, by design, a nation of Christ, nor, hopefully, will we ever be so.