[talltimtom]

“You cannot turn a 70/30 gender ratio into a 50/50”

Yes you can. As long as you are not hirering more than 60% of the Total available workforce.

[seppel]

My sentence did not end at the point. You cannot change the ratio without specifically looking at the gender, that is, specifically hire more of one group (because of their gender) and less of the other group (because of their gender).