What's wrong? That's abuse.
A woman who bashed up her husband (in any way - I'm sure I've heard of women who have run over their husbands (or ex-husbands, whatever it is) would obviously get a gaol sentence for wilful abuse with intent to harm, or whatever it's called.
Whether or not you agree with what others have said, I cannot leave this thread open any longer since you blatantly condone abuse of women. I'm happy for you to discuss views, but anybody who believes 'it's fine to hit a woman' needs to reconsider his or her manner of discussing this topic.
In short: I will NOT tolerate someone saying that it is not that bad to abuse women.