Captain,
This little video may help you understand why your kids need to be OUT of the government indoctrination center.
http://www.youtube.com/watch?v=D0lR1KQq2-U
I appluad this person for staying on the front lines of the battle and not running in retreat like you suggest.
Captain- just make some noise. Any noise. Leave messages for the principle and teacher. See if you can find any other parents who agree with you.
Basically- just call them on it. Make it known that there are some parents who are more concerned with truth than with strange propaganda.