I have to believe there is something inherently wrong with our view of society if every time someone writes about its fall one of the first things to go right out the window is the ability TO NOT FREAKING RAPE PEOPLE! Yes, I know it's fiction. But that doesn't excuse the fact that we all seem to believe that with no infrastructure the majority of people are going to either join an orgy or rape people and that women will have no role beside those of victim, baggage, or both.
In many ways reality takes its cues from the stories that we tell. Just look at the upswing in searches for creepy clown sightings worldwide since the remake of IT came out.