Teacher in a v difficult position - he is toeing the party line
But he could have approached it calmly and in a no-blame fashion - ‘well, yes, Murray, many people do believe there are only two genders, or rather more accurately, sexes. Other people believe gender is a jelly baby spectrum from Barbie to GI Joe. But most importantly none of us want anyone to feel unwelcome in this classroom. I hear your opinion, Thankyou for sharing it”.