What the hell is this about? Men are being hit by women in Australia and they can't hit back? So??
Let me tell you something, if a girl hits me anywhere but the balls she's going to hurt herself more than she hurts me. If I hit her back I could very well send her to the hospital. I'm not trying to brag. I'm not trying to be a sexist. I'm stating a fact. (Unless of course she's one of those freakish bodybuilder women). Because men are generally stronger than women and because men can generally do a lot more damage it makes sense that they should be punished more severely.
Geeze. If your lady's knocking the hell out of you with a purse why don't you just pin her arms back or something. You don't need to haul off and clip her in the jaw like she's a man.