That in companies like Google people are not treated the same, and in what measure, is something that is open for debate, not an assumption. But besides that,

That in companies like Google people are not treated the same, and in what measure, is something that is open for debate, not an assumption. But besides that, if the solution is to dedicate any special effort in hiring from this or that group, then employees from that group will feel they have to prove they really are at the same level as the others. Which is the opposite of what you wanted, and exactly what the female engineers in this interview complain about.