[devnullbrain]

That's a non-sequitur, there can be non-genetic and non-sexism cultural reasons that influence study tendencies, or a blend of all three.

[teractiveodular]

Such as? If a specific culture puts women off studying CS, than that culture is sexist, no?

[scarmig]

If 90% of nurses are women, is nursing culture sexist against men?

[sadeshmukh]

Yes.