Thanks for the clarification. I had never heard that Minoans came from Africa before.
Bernal likes to accuse his opponents of racism--he constructs what he calls an "Aryan Model" of conventional views, insinuating it's somehow linked to Nazi ideas, and has no hesitation about smearing very honorable scholars with baseless allegations. It's all essentially agitprop--tearing down "bourgeois" scholarship in the name of socialism.