That's cute. What do you believe the Establishment Clause does?
The "establishment clause" is is an early attempt by slimy politicians to circumvent the obvious intentions of the framers. If the Founders had wanted a so-called "separation of church (which church?) and state" they would have put it in in no uncertain term (like "shall not be infringed"). But they didn't...
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.
Pretty simple really... There will be no "official church of the US" and .gov shall not prevent anyone from exercising whatever flavor religion they desire (even silently saying a prayer after a football game). The intent, if you can read, is plain to see; ALL limitations in the constitution are on the .gov, not the people. The 1st Amendment keeps government out of religion, not religion out of government. That privileged, white, slave-owning racist bigot Jefferson is a hero of mine but he really screwed the pooch when he copped out and didn't just tell those goofy baptists that he didn't feel like getting involved in their silly local squabble, and instead claimed... golly gee, I'd really like to help but my hands are tied by this imaginary wall of separation.... What a puss.