As many political writers have pointed out, commitment to political equality is not an empirical claim that people are clones.

1126/science. ; Pinker S. Criticism
The Language Instinct has been criticized by Geoffrey Sampson in his book The 'Language Instinct' Debate.

Steven Arthur Pinker (born September 18 1954) is a Canadian-born experimental psychologist cognitive scientist linguist and popular science author. In his popular books he has argued that language is an "instinct" or biological adaptation shaped by natural selection.