No they don't read the US Constitution anymore. The left would prefer we read the one below (be sure to pay close attention to "Article 52").
Last time I checked, Roman Catholicism, Lutheranism, Judaism, whatever ism hasn't been designated "the official religion of the United States".
or prohibiting the free exercise thereof
It's obvious that the first amendment was geared towards protecting religious freedom, not suppressing it.
The Michael Newdows et al are what the first admendment was written for. A bunch of religion-policing Nazis telling everybody else what to believe or what is "acceptable" conduct.
Your link is very interesting, to say the least.
"Open the pod bay doors please, Hal."
HAL: "I'm sorry Dave, I'm afraid I can't do that."