But seriously - ok, you have a point, something can always upset someone. Perhaps an option to opt out?
Of course the conundrum is that people such as wintertime believe that there can be no neutrality when it comes to god. That all education must come from a theistic worldview, and most likely their specific theistic worldview.
So in a free society what do you do? I think the best answer is neutrality in the public schools with the parents having the option to opt out entirely. However, you are still taking money from those people to promote a view they do not agree with.
In a pluralistic society like ours there is no good answer. If you completely get government out of the education system you will have alot of children not see the inside of a classroom due to their parents not being able to afford it or not caring. This is how government schools began in the first place.
For full disclosure I did teach in public schools for a few years. All of it in city schools and I do not miss it. Many freepers like to beat up on teachers but it is one of the toughest jobs out there. I would rather deploy to Iraq again or Afghanistan before I would go back to teaching.