I'm actually not sure how that follows. Intersex, to the best of my knowledge, is generally considered a rare exception to the norm of the human condition. There are similar exceptions in the case of chromosome sexual division (XXY and so on rather than just XX and XY). I don't think that the exceptions disprove the rule in this case.

In any event, my reply was more of a statement saying that the post was a bit unfair in characterising the pope's words than an attempt to prove or disprove binary sex in humans. I'm not saying you have to believe there are only two genders that come from only two sexes. I'm saying that saying that this is the case is hardly the same as "directly attacking" any group of people.