It would be difficult to prove any "optimal equilibrium of gender" even one of 50/50. Of course, those who strive for equality of opportunity aren't trying to i

It would be difficult to prove any "optimal equilibrium of gender" even one of 50/50. Of course, those who strive for equality of opportunity aren't trying to institutionally force their optimal equilibrium of gender on anyone else. We accept that preferences play a role as to who ends up working in a particular sector, and those preferences may differ from our ideal.