Mujus, you make a very concise defense of the Atheist viewpoint in your above post. Freedom from religion means exactly that: In our public spaces, those which we as a people have chosen to set aside as communal land for all Americans, it is inappropriate to decorate them in the trappings of a belief system of a portion of the population. Whether that portion is a minority or the majority, it is inappropriate for American institutions to hold one of our multitude of belief systems as more deserving of representation than others. The government-funded pagan worship center at the Air Force Academy is just as much in violation of this ideal as a cross in a national park, a government-funded granite of the ten commandments in a federal courthouse, sanctioned prayer in public schools, or the income tax exemption enjoyed by the clergy. Conversely, it would be equally inappropriate for the government to dictate what can and cannot be presented in the private sector, whether that be on church grounds, parochial schools, in synagogue, a mosque, your backyard, whatever.
I would never dream of stepping into your church on a Sunday morning and preaching Charles Darwin or chanting the Moslem Adhan or singing a Greek Hymn to Aphrodite. In return, we simply ask the courtesy of allowing the "common good" to be just that. Common. To every American. Regardless of our beliefs.