I don't believe men are naturally predators at all. I'm almost 30 and have never been assaulted by a man in my entire life. I do think there are violent people out there who should be put in jail and never let out. They represent the extreme end of the spectrum. Look at that other thread where a man raped 2 children and killed another for a good example.
I just think it's important to acknowledge the reality that most men who commit violent acts won't ever be arrested, charged or spend any time in jail. The most common face of abuse for women isn't usually a stranger. It's more likely to be your father, your uncle, a family friend, your teacher, your date, your boyfriend or your husband. Most likely the victim will never report the crime either because she's embarassed, she blames herself or she loves her abuser and doesn't want him to get into trouble.
The stranger who attacks a woman walking alone at night exists, and needs to be dealt with. I just don't think he should get the majority of the focus when he's very uncommon. It's easier for a woman to go to the cops and say a man attacked her on the street and raped her (though it's still difficult). We need to make those crimes more reportable and the process better (the papers here were reporting over 2000 rape kits haven't even been tested!!!). But, we also need to start focusing on the much more common threat that exists and that's not the stranger. Most of those men can probably be helped to learn to control the impulses that cause them to be violent.