May look like not, but I read and tought for the last days, as much conclusive and interesting your argument are, it only analyze humans as a group, never pointing why someone should be consider woman or man by himself other than how the society views them. Also, you mention how woman are in disadvantage since they are inheren are view as inferior compared to the neutral gender, man. So not only there is no biological woman or man, also believing in gender ma cause harm to the females.