@LostInCalifornia At the very least it's disingenuous. It's meant to reinforce the idea that nobody can tell who is male and who is female unless we check if they have a penis, but ironically these are the people who also claim that genitals do not define if anyone is male or female.
The very fact that their arguments are stupid (either deliberately or unintentionally) is enough of a reason to laugh them out of the public space.