Recently I had a surreally disquieting experience. Someone had randomly posted up a photograph of girls in school uniform on my school’s Old Girls’ Facebook page (this school used to be a convent boarding school but is now a girls’ Catholic day school). Above the photo was a caption referring to private schools having to face up to new transgender issues.

I added a one-line comment, saying I hoped that such schools would not give in to political correctness on this matter. There were instant strong objections to my remark. So I added a couple of paragraphs, explaining why Christians follow history, the Bible, biology and common sense on sex and gender and recommending a couple of books. This led to an irrational and angry response on the part of several commentators who demanded that the thread be closed immediately. It was.