**Firstly, which God (or version of Him) should there be in the school? The protestant version? The Muslim version? What about Hindu gods? Be careful what you wish for, you just might get it. **
Second, it is not true that christian expression is banned in schools. The law is the schools (or it’s employees) cannot sponsor, endorse, or force a religion on students within the school. In other words, a student can pray if they want. A teacher can pray if she wants. But neither a school or a teacher can make their religious practice a school practice or a requirement of students. A teacher can pray, but she can’t have her class do it. It’s similiar to many work policies. Your boss can pray. You can pray. Your boss can’t insist you pray though or make your work environment so difficult that you feel you have to conform to his practices.
I have no problem with prayer or teaching children about God. I just don’t think it’s smart to put such an important task in the hands of a gov’t school. I wouldn’t want a protestant view of God being taught with my tax dollars to my Catholic kids. And I’m sure there’s many a protestant who would feel the same way towards a Catholic teacher. At best, a watered down “everything’s the same” view of God is what would be achieved and that is certainly not a better thing. At worst, only one view would be acceptable and I’m highly doubtful that it would be a Catholic view.
All that aside, frankly I think schools should be working at reading, writing, and mathematics as these are the purpose of their existance and far too many are failing to deliver.
**Just a respectfully disagreeing opinion. **