In other words, the left is not only progressive when it coerces citizens to act in ways the left deems appropriate but also science itself -- through evolution -- inexorably leads to government coercion on behalf of such policies.
Whereas until now, the democratic left has attempted to persuade humanity that left-wing policies are inherently progressive, this Harvard professor has gone a huge step further. Left-wing policies are scientifically based. This is exactly how the Soviet Communists defended their totalitarian system. Everything they advocated was "naoochni," "scientific."
To differ with the left is not only definitionally sexist, intolerant, xenophobic, homophobic, Islamophobic, racist, and bigoted (SIXHIRB, as I have labeled it) -- it is now against science itself.
Those who oppose Mayor Bloomberg's law in the name of liberty are therefore missing the point. Not only does another left-wing god -- health -- demand government coercion, so does evolution itself. Those Americans who place liberty above other considerations and oppose Mayor Bloomberg's proposal to ban large sodas might as well argue against the earth's tilt because they don't like winter.
That is the logical upshot of Professor Lieberman's position.
But there is an even more foolish and dangerous upshot to "we have evolved to need coercion."
If we take this claim seriously and use evolution to guide social policy, little that is truly decent will survive. Is there anything less prescribed by evolution than, let us say, hospices? Professor Lieberman writes that humans have evolved into cooperating with one another. But he cannot deny that the basic evolutionary proposition is survival of the fittest. How, then, can an evolutionary perspective demand the expending of energy and resources to take care of those who are dying? And if evolution demands the survival of the species, wouldn't evolution call for other "coercion" -- against abortion, for example?
Which all proves that what the professor really means to say -- and more and more college graduates will be taught -- is this: "We have evolved to vote Democrat."
Dennis Prager is a SRN radio show host, contributing columnist for Townhall.com and author of his newest book, “The Ten Commandments: Still the Best Moral Code.”