That was a really bizarre statement anyway - north Africans are often very light in skin tone. The author appears to equate "African" with "black", which isn't at all the case. It's a big continent with a ton of diversity and always has been. For example, look up images of the Berber ethnic group.

When the author is getting basic claims wrong and accusing people of racism based on things he clearly has no idea about, it's hard to take the rest of his argument seriously.