You're talking about a statistical outlier that has literally no bearing on this issue.
If you state something that is
usually true as something that is
always true, then I will point it out in a case that strikes as narrowly as possible in order to give you ground to concede.
If the point was not about someone’s indisputable gender, based upon gonads, hormonal system, genitalia, and chromosomes, but someone’s disputable gender, based upon self analysis and identification, I would answer that point. To redefine gender as being based solely upon one of those four characteristics that are almost always, but not always, in agreement is a rather silly argument against the legitimacy of transgender identification.