We cannot hope to understand sex and gender until we clarify our attitude toward nature. Sex is a subset to nature. Sex is the natural in man. Society is an artificial construction, a defense against nature's power. Without society, we would be storm-tossed on the barbarous sea that is nature.
Society is a system of inherited forms reducing our humiliating passivity to nature.
We may alter these forms, slowly or suddenly, but no change in society will change nature. Human beings are not nature's favorites. We are merely one of a multitude of species upon which nature indiscriminately exerts its force. Nature has a master agenda we can only dimly know. Human life began in flight and fear.