Earlier quoted context omitted.
I am sorry, but this attitude is sexist. My allies are those I can relate to, those which I can cooperate with. I don't pick my allies based on gender, and nor should you. And you shouldn't coerce anyone into forming alliances based on gender. It is the person that matters, not their gender or race or whatever other random attribute.
Its sexism all the way down - Sandberg would not have done that to a male subordinate (who's wife was giving birth) and a male boss would not have done that to Wynn-Williams. Women should not discriminate against women in the workplace because they are women.
Controversial, but shouldn't be: men are on average better at standing up for themselves and saying "no".