But to use those factual physical differences as a way to explain (read: justify) archaic, false beliefs about other differences between men and women? Yeah, that's pretty sexist.
Which raises a question very similar to the one losteric asked earlier: is the idea that women are more nuturing and more attached to children an archaic, false belief, or a biological fact?
I don't know the answer, but merely asking the question as
losteric did is not sexist.