It's hypocrisy to suggest that gays who seek to be able to marry and not to be fired because of their sexual orientation are demanding "special rights," while actually demanding that one religion be given special privileges that others must be denied. That hypocrisy is on display at the WorldNetDaily.
There are two reasonable, constitutional policies for the school--permit all religious groups to submit flyers for distribution, or not permit any of them to do so. (In my opinion, schools shouldn't be sending home anything with students that isn't from the school itself.)
More at Dispatches from the Culture Wars.