Other than the fact that the "10" version is a derivative from older tradition, where in the 10 Commandments is there mention of the US or of Christianity? What about most of Christianity's move away from the Old Testament with doctrines like the New Covenant? Where in the US Constitution do you see a mention of Christianity as the "religion of the land"? You will not, because if you read it, you'll actually see that it makes clear that no religion should control the state and that the state should not impose or suppress religionS. If you read the writings of the founders, it's also clear that they did not embrace your type of "Christianity". Where did Jesus say that he wanted you to make a state religion, as opposed to the belief in a kingdom in heaven?
So no matter how illegitimate and untenable on all points, you really want that? What of the better Christians and other Americans who don't want to be involved in your cult or theocracy? What will you do against them if you do somehow hold some power at some point? Honestly, why would you, without quoting cherry picked ancient human tradition?
IRT "DOS Et AL":
State atheism rarely existed indeed, usually enforced as part of drastic movements and personality cults that are themselves similar to religion. Dawkins wanted to educate, not communist revolution under a dictator. As for the Tripoli uncertainty propaganda, it's similar to the misrepresentation of the Constitution so it's an ironic argument. We can also appeal to experts who confirm what is already explicit and it wasn't the straw man of an "atheist nation". It's not to justify atheism, it's to show that the separation of church and state was important at the foundation. I don't see commenters claim that the US is an atheist state either.
"Leninist atheism" here was thus a straw man for a tolerant secular state. Another comment exposes the inability to distinguish state atheism and tolerant secularity. Then personal atheism isn't about disproving gods, it's about not being convinced by your claims of their existence (and those of ancient humans that you may cite). It's not about deciding for others, but it includes the support of continued existence of secular law to prevent crimes that can harm others.
For instance, if it's part of your religion to sacrifice an animal, it's still illegal to go steal one to do it. And you can teach someone about your beliefs, but you can't torture them if they don't obey you. You can marry somebody but it's not slave ownership. You don't get to burn churches of other faiths or of any faith. Or schools if you don't like facts included in the curriculum. As for emotional manipulation propaganda, it's often an attempt to bypass sound rationality. Unless it was trolling, this becomes very revealing and I'll just stop with the fact that these include straw men with the goal to promote subjugation and suppress human rights: "Yet because i dont support gay marriage, or baby murder, or reverse racism/sexism, im labeld a fundamentalist." And what's the deal with hating Hippocrates? :D
And "His4Life":
"nation under God" wasn't in any founding document and not in the Constitution, it's later and also questionable. Earlier references to "God" by deists don't refer to the same kind of God either. When Einstein referred to "God" it was also a different concept, even if that's too often misrepresented. Even as someone who's not Catholic I can also see that you need to read on Catholicism. Then a reason that you'll find "paganism" in every part of Christianity is simply that non-Christianity is older and continued to influence it. Religions are human movements and traditions. Just like monotheism often meant the concentration of power, imperialism and the imposition of new state religion often meant syncretism and the adoption and adaptation of customs. Easter is much older than the Pantecost, winter festivals much older than Christmas, Utnapishtim older than Noah, fertility goddesses older than Yahweh, etc. What's the next reason? Because groups all claim the truth and call others heretics or pagans. Another good reason for the separation of church and state, isn't it.