I'm not sure what the takeaway here is, that people who make a decent income should be barred from marrying other people who make a decent income? I usually like Edsall's analyses, but he seems to be mixing correlation and causation a bit. One of the few things I agree with conservatives on is that the disintegration of families has had a hugely negative impact on society. I also don't think that people should be criticized for maintaining a two income nuclear family, as if it's an option only available to high earners.