Darwin’s second big idea was that Nature is always ruthless: that the strong push out the weak, that compassion and compromise are for cissies whom Nature throws to the wall. Darwin borrowed the phrase “survival of the fittest” from the now forgotten and much discredited philosopher Herbert Spencer. He invented a consolation myth for the selfish class to which he belonged, to persuade them that their neglect of the poor, and the colossal gulf between them and the poor, was the way Nature intended things. He thought his class would outbreed the “savages” (ie the brown peoples of the globe) and the feckless, drunken Irish. Stubbornly, the unfittest survived. Brown, Jewish and Irish people had more babies than the Darwin class. The Darwinians then had to devise the hateful pseudo-science of eugenics, which was a scheme to prevent the poor from breeding.
Having more brats is, in Darwinian terms, being the fittest – having more brats that have brats is in fact the definition of it.
AN Wilson is definitely barking up the wrong tree here.