JAMES TARANTO: Why The Left Needs Racism: It Serves A Political Purpose.

The political left claims to love racial diversity, but it bitterly opposes such diversity on the political right. This is an obvious matter of political self-interest: Since 1964, blacks have voted overwhelmingly Democratic. If Republicans were able to attract black votes, the result would be catastrophic for the Democratic Party. Even in 2008, the Democrats’ best presidential year since ’64, if the black vote had been evenly split between the parties (and holding the nonblack vote constant), Barack Obama would have gotten about 48% of the vote and John McCain would be president.

To keep blacks voting Democratic, it is necessary for the party and its supporters to keep alive the idea that racism is prevalent in America and to portray the Republican Party (as well as independent challengers to the Democrats, such as the tea-party movement) as racist. The election of Barack Obama made nonsense of the idea that America remains a racist country and thereby necessitated an intensifying of attacks on the opposition as racist.

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