I don't know if many male readers will fail to think of the reversal before he suggests it. But he has a point that we teach girls, but not boys, that rape could happen to them. (I don't know if we teach boys that they might be rapists, but we sure don't teach girls that.) This may explain some empathy failures. Rape of men is around one third as common as rape of women, but the tropes treat rape of men as something that happens to other people, such as prison inmates or comedic characters.