[manfredo]

I think you missed it the central point of the parent commenter. Take for instance, the fact that men commit the overwhelming majority of violent crime:

* Is it sexist to conclude that someone is a violent criminal just because they're a man? Yes.

* Is it sexist to say that a model predicting that men will commit 90% of violent crime isn't biased, with the reasoning that men on average commit way more violence than women? No.