I don't know if I understand exactly what you're saying. But, if you mean it's not the infantry, but supply, logistics, intelligence and other support personnel that are doing this, I don't know if I can agree.
I'm only speaking now of the Marines, but although there are no women in a Marine Corps infantry battalion, there certainly are women around base or camp. Like I said, it happens and sometimes the Marines are in rifle or weapons companies or other direct combat billets - and frankly, anyone male or female in Iraq or Afghanistan is in a potential combat billet.
Rape amongst the troops is a real problem. But, I would argue that media blows it up to a level and scale that is unrealistic.
This is an old issue with primarily black soldiers, even 38 years ago when the military was restricted to 2% females we had a problem with mostly black soldiers committing street like crimes (rape and violent robbery) in post areas at night. We were advised to escort women through those areas when we saw one.
Today the women and the most aggressive soldiers with women are both in the same place, support units.