Was John A. Macdonald a white supremacist?

History professor Timothy Stanley says our first prime minister was a white supremacist.

In 1885, John A. Macdonald told the House of Commons that, if the Chinese were not excluded from Canada, “the Aryan character of the future of British America should be destroyed …” This was the precise moment in the histories of Canada and the British Dominions when Macdonald personally introduced race as a defining legal principle of the state…

Macdonald’s comments came as he justified an amendment taking the vote away from anyone “of Mongolian or Chinese race.” He warned that, if the Chinese (who had been in British Columbia as long as Europeans) were allowed to vote, “they might control the vote of that whole Province” and their “Chinese representatives” would foist “Asiatic principles,” “immoralities,” and “eccentricities” on the House “which are abhorrent to the Aryan race and Aryan principles.” He further claimed that “the Aryan races will not wholesomely amalgamate with the Africans or the Asiatics” and that “the cross of those races, like the cross of the dog and the fox, is not successful; it cannot be, and never will be.” For Macdonald, Canada was to be the country that restored a pure Aryan race to its past glory, and the Chinese threatened this purity.