I'd like to clarify that I'm not trying to argue or debate, but rather to explain. I feel that we (as in the human race) are doing a disservice to others when we try to apply a "one size fits all" mentality. Obviously there are some women who are more masculine, and some men who are more feminine. Then there are people like me who are somewhere in between and change over time. Every person is unique.

We're not saying that one gender is one way and the other gender is a different way. Rather, we're saying that certain behaviors are generally defined as masculine or feminine by people, through a myriad of factors that vary by culture, upbringing, and personal opinion.

I recognize that there are biological differences between men and women. I don't think there are many people who can say there aren't. And as you've demonstrated, these differences can even affect our behaviors, like how we throw or how we talk.

Furthermore, I realize that we can, to a degree, alter our behavior to be more feminine or masculine. You gave the example of gay men who use feminine mannerisms. They can choose to use them or they can choose not to. Likewise, people can engage in gendered behavior. For example, in America, shopping is considered feminine and working on cars is masculine.

You've made a good case for why we shouldn't consider such behaviors to be masculine or feminine. One's sex has little to do with one's skill with cars. Yes there are slight biological differences, but they're not as pronounced as people think.

I'd argue that you can't even use biology to determine masculinity and femininity. Men are generally taller than women. And yet some men are shorter than most women and some women are taller than most men. These biological differences are further diminished when you compare people of varying ethnicities.

Essentially, any metric you use will meet some sort of counter metric that can refute it. This is why I believe gender is essentially an artificial construct that we make in order to fit in with society.

Many animals, humans included, naturally congregate together. We live in cities, towns, states, regions, and countries. We join social groups such as clubs, political parties, and organizations. We are naturally inclined toward this behavior.

Part of this behavior is codifying rules for men and women within a given group. More and more, these codes and rules are being challenged by society and by people like us. The more these rules change, the more the lines blur, and the more people contemplate what "masculinity" and "femininity" mean.

Sorry if I seem to be rambling.