“No citizen enjoys genuine freedom of religious conviction until the state is indifferent to every form of religious outlook from Atheism to Zoroastrianism.”

That the U.S. was SPECIFICALLY founded to uphold principles such as this, but still isn't culturally mature enough to fully grasp the idea is nothing short of tragic.

how does this have to do with the Bible?

Mystery, This quote isn't supposed to be about the Bible.

I agree to a point.  A "religious outlook" implies no coercion, merely a point of view.  When that point of view dictates actions that violate the inalienable rights of others, it is not just an "outlook," it is a form of law, placing priests and clerics above the common people and the common law.  The Islamification of many Western cities is essentially colonization with their own theocracy governing the people — death penalties for violations against 'Islam' are commonplace.  This is not just an outlook, and therefore cannot just be tolerated without direct conflict with the American principles enshrined by the Declaration of Independence and the Constitution.