You are essentially arguing that all gender studies are useless because there is parity among individuals in each gender. It's true there is parity, but the scientific division between male and female is very clear. It seems VERY useful to study the differences. To throw them away because all men and women aren't identical feels to me like a terribly short sighted perspective.

I'm saying I believe the premise and criteria should be more nuanced. Men vs. women suggests comparison of two binary absolutes.