Guys, the original title of the thread was not "Is America a Christian nation," the title of the thread was "The US was or was not founded as a Christian nation." To that extent, this treaty, as well as the federalist papers and writings of the founders are all relevent. The question is not whether or not the nation is now or has ever been Christian, but whether, based on the writings and policies of our founding fathers and first presidents, one could consider America as being founded as a Christian nation. To this extent, the question of whether the treaty quotes is legally binding, or whether the Federalist papers are considered legal precedent is completely and utterly irrelevent to the discussion.
That being said, the first amendment is very clear on this subject: The United States is not, has not been, and never will be a Christian nation, because our government "shall make no law regarding the establishment of religion, nor prohibiting the free exercise thereof." Any attempt, at any time since the ratification of the constitution and until the dissolution of the Republic, to declare the United States a "Christian nation" is quite clearly unconstitutional and therefore completely invalid and without any legal basis or precedent.
It is perfectly fair to say that the majority of our population is made up of Christians, but as a nation is defined by its government, and our government is, by the very document that created it and grants it authority and legitimacy, prohibited from taking any stance on religion pro or con, then ours cannot be a Christian nation.
This is, in the words of Abraham Lincoln, a nation "of the people, by the people, and for the people." To declare that this is a nation of any religion is to prevent this from being a nation of, by, or for any citizens who do not follow that religion, and dishonors the very principles on which our nation was founded.
The only people who claim that this is a Christian nation are those who are either completely ignorant of the Constitution and the founding principles of this country, or those who have wet dreams about turning America into a western version of Iran so that they can gain more power.