No one has really proposed banning religion. Religion has its place, in churches, not in schools.<quoted text>
I live in Texas and have never heard anyone say anything about killing people for not believing in God. This may be because I tend to not hang out with morons.
Abolishing religion would be just as wrong as abolishing science.
Even if it weren't what would you say should be done with the creationists of the world? Should they be fined, jailed, executed?
When religion starts to sneak into schools, and it is your own religion it is very easy to let it slide. The best way to deal with it is to change it up a bit in your head. How would you feel if students were singing songs to Allah in your neighborhood schools? How would you feel if your children were taught such songs?
It is best to leave schools religiously neutral. Of course if your religion has a crazy belief, such as the world being flat, that it is six to ten thousand years old, that there is creative falling, or any other sort of crazy belief not supported by science then don't be too surprised if that part of your religion is not honored. And the same applies to social rules.
If you believe that homosexuals, girls that have sex out of marriage, or even kids that sass their parents should be stoned, those beliefs will not be respected either. So, the schools will even intervene when your religion gets too crazy socially.
If you believe that sort of nonsense that needs to be kept from school yards too.