Atheism has all the markings of a religion and that is not funny at all.  In fact, atheists on this forum are more strident about their beliefs than most Christians.  Now, about your last sentence, if a church school is not evangelizing, equipping and empowering its students in its faith, if it is only teaching the three Rs, then what's the problem?  And why should a Christian child be exposed to false leftist doctrine, like the idea that there is more than two genders, in public school?