The Wall Street Journal:
Suppose a scientific conference on cancer prevention never addressed smoking, on the grounds that in a free society you can’t change private behavior, and anyway, maybe the statistical relationships between smoking and cancer are really caused by some other third variable. Wouldn’t some suspect that the scientists who raised these claims were driven by something—ideology, tobacco money—other than science?
Yet in the current discussions about increased inequality, few researchers, fewer reporters, and no one in the executive branch of government directly addresses what seems to be the strongest statistical correlate of inequality in the United States: the rise of single-parent families during the past half century.
Why isn’t this matter at the center of policy discussions? There are at least three reasons. First, much of politics is less about what you are for than who you are against, as Jonathan Haidt, a New York University psychology professor, noted in his popular 2012 book “The Righteous Mind.” And intellectual and cultural elites lean to the left. So, quite simply, very few professors or journalists, and fewer still who want foundation grants, want to be seen as siding with social conservatives, even if the evidence leads that way.
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