This is not necessarily something to do with ignorance, it is usually the consequence of a supremacist view.
supremacist ideology bishop you'd better.
His work is in constant dialog with the Russian avant-garde; his early paintings are visibly influenced by the supremacist canvases of Kasimir Malevich.
The whupping of White supremacist ideology by the triumphs of Black athletes, in particular boxers, vexed racists.
supremacist organizations, including the Ku Klux Klan.