I find the talk about averages vs individuals a bit upthread very interesting. It highlights how two people can seem to be talking about the same thing, but if they don't decide on the proper measure, they will both have different results from the same inputs.
If, on average, women and men have different outcomes, but, individually, most have similar support, opportunities, and consequences, then the differences may truly be a result of "choice." I would have no problem if this is how society was, no matter what I may believe of nature vs. nurture.
If, on average, women and men have the same outcomes, but, individually, a large portion of people are corralled into a specific life due to support, opportunities, and consequences, then that *seems* to be equal but really it just means that society really fucked up big by focusing on fixing the measure of the problem and not the problem itself.
I think focusing on average outcomes irrespective of individual inputs is unproductive. (It'd be like saying "People in poor countries aren't overweight, so they must be healthy." In this case, and in most, weight is a poor measure for health. Similarly, the wage gap may be an indicator that something is wrong, but it is not a good measure for "level of sexism".) We need a different measure. I don't know what that would be, though.