In its erasure of sex categories, gender-identity ideology seeks to change not just the present, but the past, too. Any woman who, by force, luck or guile, succeeded in transcending societal strictures on her sex is now at risk of being retroactively transitioned. Boudicca and Joan of Arc are both often described as transmen. So is the Pharaoh Hatshepsut (who ‘was assigned female at birth but intermittently dressed and ruled as a King’, according to Amnesty UK).

