I think a lot of the data you're citing makes sense in the context of the world we've all been raised in, for centuries.

The problem is we have no way of testing out an alternate-universe scenario in which gender roles had been dispersed in a different manner. So we can safely draw the conclusion that there are SOME brain differences based on biological sex -- but we don't have a reliable way to measure the extent or magnitude to which certain behaviors are nature vs. nurture.