Speaking as a staunch atheist, I'd say you don't get to dictate other peoples' beliefs or practices.
Public schools don't teach religion, except from a social and historical context. Our laws are not based on any particular religion.
You do not have to follow a religion. You do not have to attend church. You do not have to "live with god" in any sense.
The only thing you have to deal with is living in a pluralistic society.
If everything you seem to want was put into practice, then if proof of god was revealed you would not have the "right" to opt out, by your own logic.
Just let people live their lives.