This is true. Don't expect many here to believe it though. They have been told this so many times by "moral" people that wish to divide (and the Please Send More Money To Me For Jesus To Protect Us From This Travesty! hucksters) -- they are absolutely convinced it is so.
From schools that have tried to ban Christian Fellowship clubs on school property(while encouraging gay teen clubs) to banning valedictorian speeches with christian content, the incidents are common.
You may fancy yourself a liberal and you don't want to ban prayer -- that doesn't mean that those with whom you are allied share your tolerance and moderation.