Biases are not just socially constructed - they're often rooted in biology. It might just be the case that for biological reasons, females (in general) aren't as interested in creating technology.
The gender imbalance in fields like programming and nursing is larger in the most "fair and evolved" societies (e.g. Denmark), because these societies allow biological gender differences to more freely assert themselves.
Equality of opportunity, not equality of outcome is something I very strongly agree with, I would be mortified to be given handouts because of a particular box I fit in.
Affirmative action reeks of plastering over a bug instead of squashing it at the root cause.
The gender imbalance in fields like programming and nursing is larger in the most "fair and evolved" societies (e.g. Denmark), because these societies allow biological gender differences to more freely assert themselves.