The Prevailing Unfit

Evolutionary biology has often been seen as highly relevant to ethics, beginning in the nineteenth century. Social Darwinism — at least as it came to be explained and understood by later generations — was an ideology that justified laissez-faire capitalism with reference to the natural “struggle for existence.” In the writings of authors such as Herbert Spencer, the accumulation of wealth with little regard for those less fortunate was justified as “nature’s way.” Of course, the “struggle” involved in natural selection is not a struggle to accumulate a stock portfolio but a struggle to reproduce — and ironically, Social Darwinism arose at the very time that the affluent classes of Western nations were beginning to limit their reproduction (the so-called “demographic transition”) with the result that the economic struggle and the Darwinian struggle were at cross-purposes.

Partly in response to this contradiction, the eugenics movement arose, with its battle cry, “The unfit are reproducing like rabbits; we must do something to stop them!” Although plenty of prominent Darwinians endorsed such sentiments in their day, no more incoherent a plea can be imagined from a Darwinian point of view: If the great unwashed are out-reproducing the genteel classes, that can only imply that it is the great unwashed who are the fittest — not the supposed “winners” in the economic struggle. It is the genteel classes, with their restrained reproduction, who are the unfit. So the foundations of eugenics are complete nonsense from a Darwinian point of view.

Austin L. Hughes