What makes us men any more than being beings with arbitrary shapes? I'm using arbitrary in the literal sense of "decided by individuals without regards to external factors".
I'm not a man. I'm me, and I happen to be in this body. All these words are just ways other people are labeling me so they can decide how I'm to be treated. Putting a label on a person is no different than putting a handle on your coffee pot.
Nice line. Did you get it somewhere or make it up?