Thoughts on "The He Hormone"

I also found “The He Hormone” a frustrating yet intriguing article.  I was surprised by how much the author attributed gender differences to biology instead of culture.  I thought one of the most shocking parts of the article was when Sullivan suggested what would happen to society if parents injected their sons with female hormones while in the womb, eradicating all differences in testosterone.  Sullivan takes a quote from Matt Ridley that states, ''War, rape, boxing, car racing, pornography and hamburgers and beer would soon be distant memories. A feminist paradise would have arrived.''  I think it is absurd to claim that all of these things happen because of testosterone and if men were injected with female hormones then they would not exist.  I am sure testosterone has an influence on all of these things but it is in no way the only reason they exist.  Also all of the things that Ridley mentioned have nothing to do with each other.  How can one say that war, rape, car racing, pornography, hamburgers, and beer all fall into the same category?  And also, why would a feminist paradise have to include a world with no beer and car racing?  I think in this statement, Ridley is confuses culture and biology.  The reason that men participate in war and men drink beer is not because they are naturally inclined to do so, it is because that is what culture tells them to do.  There are certainly some distinct physiological differences between man and woman but they are not the cause of what would socially be considered masculine and feminine.