I think you are confused. It wasn't a political statement, but a scientific one. Why can't parents take their kids to church to learn about religion?
And keep it there - behind Church walls, right?
This is the socialist manta of the Marxist left. They conveniently forget the other side of the mythical "separation-of-church-and-state" coin: "or prohibiting the free exercise thereof." In public is where true religion is exercised.