Digressing from the topic for a moment, the real "sneaking" in public schools has concerned the denial of of education concerning religion. Is it really schooling if a topic of such importance and impact on the history of man is completely ignored? That is absurd.
Capitalism, and indeed western civilization was founded largely because of societies emphasis on religious principles.
Heck, if countries had never persecuted Jews then we might never have discovered banking, or concepts such as financial liquidity. If it were not for edicts by the papacy concerning the propagation of "the faith' we might never have discovered the "new world" or even circumnavigated the earth.
Seriously, it is the eliminating of instruction concerning religion that has been the real harbinger of societal decay during the last half century in the country. What is this prohibition that you are talking about? Who enacted that? Judges?
Excellent point. And that damage has left us in a situation where public schools still talk about foreign religions which they must do to discuss culture differences. But they can't examine their own Christian culture for fear of being accused of "establishing religion".
It is a most insidious and unbalanced scenario. Christianity is attacked from both sides and not given voice to defend itself.