In this universe I doubt the " hey infant if you aren't different gender and sex then dad gonna do some eff'ed up stuff to you as a son." "Oh thanks mother I am totally okay with rushed and secretive non medicated surgical procedure to very painfully make that happen so I don't suffer a potentially worse fate." was a consenting dialogue between the mother and "infant" son. Probable scenario. Step one provide the infant alcohol, step two pay a stranger to quickly not professionally remove genitalia, step 3 dress him up and instruct the developing child that if it were a boy consequences and child grows understanding this or an honest exchange about their original birth and procedure with the mother so to remain safe.