The reality of the situation is this: Regardless of one’s values or approach to human subjectivity, biology is an inherently limiting force, constraining one to the possibilities of a particular physical body. For philosophies that view autonomous action as the ultimate good,
human anatomy becomes a roadblock toward authentic free action and identity. In order to free the subject from such a constraint, then, personal identity must be strongly differentiated from biological makeup—hence the rise of the strong sex and gender distinction.