I haven't bothered reading any of JBP's work prior to his elevation to international fame, but I do not think he was the first or only person of political relevancy to hold such an opinion.
When it was identitarians and the alt-right trying to argue that blacks and mexicans will never vote R because they're genetically pre-inclined to vote D for free shit or some other high_iq babble
Meanwhile other Rs have been arguing for quite some time that you need only shift the voting margins of these demographics by 10-15 points in the other direction
