I fall into the middleground here. I feel that the raider groups we see are too diverse gender wise. While I don't feel that there should necessarily be less raiders of a given gender than the other (a crazy, drugged up person with a gun is just as deadly no matter what their gender) I do feel that each gang of raiders should be primarily male or primarily female. It's basic group dynamics, a gang of female raiders wouldn't be that interested in recruiting guys and a gang of male raiders wouldn't want to recruit girls to fight with them either. There would be exceptions of course, the odd few males in a female group or females in a male group but primarily the gangs should be unigender from a social science perspective.