Oh there are quite a few justifications there G. If some chick has a knife or a gun or baton or other weapon and is about to do harm to me or my family there is a high likelyhood she will be in need of a dentist shortly afterward. You, my friend, can take a bullet and watch your wife get shot too so as to keep your 'morals' in tact. Me, I'm knocking her out cold and making sure she ain't getting up soon.
What about women in combat roles as is becoming more prevalent in western societies? Are you saying in a wartime combat situation you would not engage in hand-to-hand combat just because it was a woman? What would you do...surrender?