An excellent read on the history of the publik skools. They stink. (Please, I live in the LAUSD. I know stink.)
However, the greater danger I see arises from the mandatory detachment/obsolescence of a Higher Being at all levels of public life, in other words a State Religion of Secular Humanism, which will lead to, ultimately, the loss of the Predicate Author/Authority of Liberty.
Do you think that if the word God is banned, the government will suddenly get less good at teaching or representing God's law?
How could they get any WORSE? Let them call it secular humanism. At least there'll be no question that they're immoral cretins and they won't give Christianity a bad name.