Disaster is right. I suspect the explaination of much of our growing income disparity is right here.
The single-mother revolution has been an economic catastrophe for women. Poverty remains relatively rare among married couples with children; the U.S. census puts only 8.8% of them in that category, up from 6.7% since the start of the Great Recession. But more than 40% of single-mother families are poor, up from 37% before the downturn. In the bottom quintile of earnings, most households are single people, many of them elderly. But of the two-fifths of bottom-quintile households that are families, 83% are headed by single mothers. The Brookings Institution's Isabel Sawhill calculates that virtually all the increase in child poverty in the United States since the 1970s would vanish if parents still married at 1970 rates.