It is a subjetive measure but still a measure. For example, the position requires knowing Python, a person with 5 years of experience in Python will probably know more than a person with 1. Yes, you can be wrong but hiring the 5 year person is the common sense, you will do less mistakes this way. Hiring the women because it is a women it is a positive discrimination. Not hiring the women with experience is discrimination, but does this really happen? Can you prove it?

(Ok yes, people see a woman to hire and say +1 point because you a woman and will us pay less taxes because of the diversity balance. This shit happens too)

You talk like you have written those books, enlighten me.