> I'm not convinced that there still is that full sense of "freedom to choose" that you suggest.
I don't, and I wouldn't! The Scandinavian countries are much further along on this, but probably still don't constitute a perfectly level playing field where being a man or a woman doesn't confer advantages in certain disciplines. I'm just not holding my breath for perfect equality of outcome once the playing fields are fully level; in fact, the science points to it being pretty likely that the only way you'll get men and women to do exactly the same things in exactly the same way in exactly the same proportions is by tyrannical force, which I don't think helps either sex.
> Would you still feel as comfortable to suggest that, "... where all races have the highest levels of equality of opportunity, education, and choice in the world...is that that racial effects are actually maximized.
Sure! This one is trickier as I can't point to any society that's very far along the path of actually leveling the playing fields between races. Certainly in the U.S. the stakes are stacked abhorrently high against blacks in particular (the drug war in particular is disgustingly deliberate legislative racism, in my opinion). Many Mexicans in the U.S. are not free to choose. However, we've already run a lot of well-designed experiments that show that race is not at all correlated with intelligence, drive, job choice independent of other factors (family, education, and level of poverty, for example). Gender, on the other hand, has been shown to correlate not at all with things like intelligence, and correlate fairly tightly with things that affect your work and your choice of occupation, such as: disagreeableness (one of the strongest predictors of ending up in a leadership position), empathy, interest in people vs. interest in ideas, etc.
All categories should be open for discussion, and additional good science will gradually wither the fields/distinctions that have no predictive ability or bearing on reality (phrenology, eugenics, antiquated theories of physics, etc.).
This last statement is subjective opinion, but my assessment of the science (plus my real-world experience and fallible human schemas) tell me that we won't find perfect equality between genders once we have perfect equity between genders. That equity is absolutely worth striving for but not at the expense of good science, healthy debate, and dialogue itself, things that are at times threatened in these emotionally-charged discussions.