I see people post this a lot without understanding the point of what she's saying. Adria subscribes to the belief that "racism = prejudice + power", which is basically to say that, yes, black people can be hateful towards white people and yes, racial discrimination does occur within the black community, but RACISM is the result of systematic oppression over hundreds of years.
The reason this distinction is made is because black people discriminating against white people is a response to the racism that they face every day, which is very different from white people thinking that blacks are inherently inferior and should have their rights stripped from them.
Please, educate yourselves on what Adria's saying. I know it all seems so foreign, but beyond the fog, there is a very real and very true message that should be heard and studied.