Just throwing this out there, but do you think that white racism gets talked about more than black racism because African Americans only make up 12% of the population?
Here me out.
I have a Spanish name and I look absolutely white. I went to a predominantly African American school, so trust me I get that they can be racist. So can anyone, and I don't think anyone on this site has argued that only white people can be racist because that's stupid. Anyone who says that is stupid.
The problem that I think people are ignoring is that since White Americans make up such a larger amount of the population than African Americans that, assuming the percentage of racism is similar across both races, racist White Americans have the ability to significantly negatively affect others simply because of they have more power based on numbers.
Even assuming (for example) only 30% of White Americans hold SOME racist thoughts, that is still a larger group of people than the ENTIRE African American population.
78% of cops are white for example. Most of our interactions are going to be with White cops, and most cops have superiors who are White, and most internal investigations are done by White people investigating White cops. So a small population of racist white cops are able to have a much larger negative effect on the White population than racist black cops.
Now extend that logic towards government, corporate America, and other areas where White Americans are the majority. It's just much easier for White Americans to negatively affect minorities on every single level of American society than it is for minorities in this country to negatively hold back White Americans from succeeding.