Kay S. Hymowitz writes at City Journal, "Yes, taken as a group, women vote more Democratic than men do. But that has little to do with their sex."
"Fifty-three percent of married female voters went for Romney. Among single women, by contrast, Romney was about as popular as an extra 20 pounds; a mere 31 percent supported him. The gap between married and single women, then, is wider than the male-female gap that the media have been touting. And it isn’t new; married women have voted Republican in every presidential election since 1980, with the one exception of 1996, when they preferred President Clinton by 4 percentage points."
"But the obvious reason for the marriage gap is that for several decades now, married women have become likelier to be white, educated, affluent, and older—demographic groups that leaned Republican in this election. Romney lost the black, Hispanic, and Asian vote, while he won the college-educated vote (though not post-grads), the votes of those making over $50,000 a year, and the votes of older Generation X-ers, Baby Boomers, and voters over 65. In other words, married women voted less as part of a sisterhood than as part of a cohort of white people holding college diplomas, earning more than $50,000 a year, and wearing reading glasses."
"Similarly, unmarried women voted just the way you’d expect them to, considering their age, income, education, race, and ethnicity. A large number of unmarried women are single mothers—and minorities are disproportionately represented among that population. More than 30 percent of single mothers are Hispanic, and 28 percent are black, even though Hispanics are just 17 percent of the population and blacks 12 percent. Single mothers are also likely to be younger, less educated, and poorer than married women are. Sure enough, all these groups went Democratic in this election. The category “single women” also includes childless women in their twenties and thirties. These are by definition part of the “youth vote,” which went heavily for Obama, regardless of gender."http://www.city-journal.org/2012/eon1116kh.html