So why do you want atheism pushed by the government over Christianity?
You are as clueless as fuck...
No one wants the government to "push Atheism over Christianity." No one. We don't want the government pushing anything.
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.
Learn it, know it, live it.