In perhaps the biggest setback yet suffered by the transgenderist juggernaut, the International Swimming Federation has sunk the dreams of Olympic gold of Will “Lia” Thomas, the also-ran male swimmer who declared himself a woman and won an NCAA championship. In a shocking spasm of sanity, the ruling body declared that ex-men who had gone through male puberty (from age 12 onward) are ineligible to enter women’s events because of the permanent advantages in size and strength they have gained. It’s hard to lose when you have as much of an ideological tailwind at your back as Thomas has had,...