I will say I do doubt the authenticity of it. The teachers are very cautious about saying anything that could spark a CLU law suit against them. Any teacher doing such a thing would be very much at risk of having the parents of any student initiating a suit. It would be very easy to find a lawer that would gladly take the case for a percentage of the suit and any lawyer would have enough sense to hold off the trial until the jury was predominatly Muslim.