At one time in this country, schools began every day with Bible reading. There are still people not much older than I who remember prayer in schools. Creation was taught exclusively in schools until the Scopes trial in 1925. Constitutionally, the United States has no official religion but in practice it is a Christian nation. If it weren't for the concerted efforts of the ACLU, not much of that has changed. While I'm sure some would like to turn schools into instruments of evangelism, there is a big difference between actively promoting and proselytizing, and allowing; and it has gotten to the point these days where it isn't even allowed. That's the issue that most people I know have with the whole thing. It's the direct efforts to remove all reference to God from the schools that is causing the problem.
Personally, I think that the little that is allowed in is too much. The old adage about the camel getting his nose in the tent applies here; if you let a little religion into schools, there's always someone who wants to take it a little further, then a little further, and then further still.
Better to not begin at all.