Why do you think differences in men and women would be limited solely to communication? You don't think millions of years of sexually dimorphic specialization might have lead to different behavioral tendencies? What about different hormone serum levels and metabolism?

This utopian Western notion of the mind being a perfect clean slate from birth has no basis. Do you really think that the mountains of evidence, in the form of gender discrepancies which have been almost universal across time and culture, can be so trivially handwaved away as "social constructs"?

What about different behaviors in other sexually dimorphic mammals? You know, like, literally all of them?