You don't think it's worth at least looking at why that is? What does "psychologically different" mean? If we're saying they are genetically less disposed to enter tech as career then no, I doubt there's a lot we can do. But something tells me that isn't the case at all.

What if they're "psychologically different" because our education system and culture drives them away from engineering-y, logical careers and into more personable, "soft" industries? Shouldn't we be able to take a second look at that culture and that education system?

Note that this goes both ways. How many boys out there would make fantastic fashion designers, carers or teachers, but are dissuaded from those careers because they're not "masculine" enough?