Exactly right.

An editorial in the NY Times, for me, has gotten why presidential candidate Mitt Romney's speech defending his faith was in such bad taste.

An excerpt:

We believe democracy cannot exist without separation of church and state, not that public displays of faith are anathema. We believe, as did the founding fathers, that no specific religion should be elevated above all others by the government.

The authors of the Constitution knew that requiring specific declarations of religious belief (like Mr. Romney saying he believes Jesus was the son of God) is a step toward imposing that belief on all Americans. That is why they wrote in Article VI that “no religious test shall ever be required as a qualification to any office or public trust under the United States.”