www.dictionary.com/browse/racistRacist definition, a person who believes in racism, the doctrine that one's own racial group is superior or that a particular racial group is inferior to the others.

By whom and against whom? Who wrote that dictionary you're citing?

How much power and privilege does the black minority have over the white majority in this country to create standards by which whites are, by definition, deem inferior?

What are the consequences against whites under your proposed idea of "black racism?" Are you saying that so-called "reverse racism" is actually a thing?

When have white people ever suffered under some systematic lack of power and privilege where Black people retain an advantage over them?

I suggest that you watch the vids posted in the OP, that will definitely clarify things for you here.