Yes, the origin is Christians. They, and their churches, have failed to be salt and light to their most important and **urgent** mission field: Their children!
A Christian's **most** important and urgent mission is his own children! His next most important mission is the children of his own congregation.
By sending children into government schools that in the beginning were lukewarm and generic, then secular ( with a nod to God), and now utterly godless, Christians are failing at their most important task as Christians.
True. Wife and I, both former public school teachers, home-schooled our 8; eldest was first home-schooled student admitted to major university, got 5 year full ride, graduated summa cum laude with 2 dual major degrees (=4): B.S. in Computer Science & Math, B.A. in Physics & Greek. Another is civil engineer...