Black people can be racist against white people. Like that video of the black woman pointing a gun to the camera as she said "Make white people extinct." Racist is a race against any (or all) other race(s). Its not only white people against others.
this isnt racism. racism is a systematic issue. a black person will get jobs denied from them because theyre black. a white person will get jobs denied from them because theyre incompetent or because of other, unrelated-to-race issues. its impossible to be actively racist against white people in the US. however, in places like europe, it is possible, because ‘white’ isnt the same there.