Let me be absolutely clear: I am in no doubt there are people who feel they are one gender while having the body of the other. Living with such constant, internal conflict is horrifying for many of those affected, and it should never be ignored. No one should seek to suppress another person’s genuinely held sexual orientation or gender identity. But the question we must ask ourselves today is this – how do we decide whose needs are genuine? And how, then, should we treat them? I have been a psychotherapist for more than 30 years and, in that time,...