You know what, black people can be racist.
But only when they act in a racist fashion against other blacks, not when they act in a racist fashion against whites?
Anyone can be racist. Not necessarily can everyone be a victim of racism.
Bullshit.
Of bigotry, prejudice, race hatred, yes, but racism is a specific thing meant to privilege one group over all other groups based on race, working within a framework of supremacy (in this case white supremacy.)
You are still clinging to this redefinition of racism, championed by certain left-wing sociologists, as the only valid definition. It doesn't even work under it's own assumptions. Certain jurisdictions in US, for example City of Atlanta and DeKlab, Fulton and Clayton counties, are under complete black control. Why is it not possible for blacks within those counties to privilege blacks over whites within a framework of black supremacy?
This means the minority groups can do racist things to themselves and to each other.
But not to white people? I reject that definition entirely of course, but even if you accept it, white people are a minority in many jurisdictions. Does that mean white people can't be racist in DeKalb County, only black people can?
A black supervisor can promote only white people.
A black supervisor can also promote only black people. That is still racism.
An Asian teacher can be tougher in grading her Asian students than she is on her white students.
An Asian teacher can be tougher in grading her white students. That also is racism.
Anyone and everyone can do all kinds of things that are permitted or even encouraged under white supremacy.
What about things that are permitted or even encouraged under black supremacy?
What minorities can not do, is exercise institutional power through the system against the dominant group.
Of course they can. A black person can have power (for example a business owner, a manager in a larger business or government agency, a professor/teacher or prison guard/warden) over a white person even when he is not a member of a dominant group. Furthermore blacks can be the dominant group in certain jurisdictions or businesses. Lastly, things like affirmative action are institutional racism against white and Asian people that exist because of a sense of white guilt among many white "liberals" and "progressives".
Much the same way a driver, under orders from an overseer, could and would whip other slaves, but could not whip the overseer, so can out-group members can carryout the dictates of the racist system provided they do not try to turn on the system itself.
150 years hence, and slavery is still misused as a thought-terminating argument. While slavery was going on you might have had an argument but that is no longer the case when blacks are in many positions of power in both private sector and the government, including the most powerful office in the land.
So a more accurate phrasing of the situation would be, white people can't be victims of racism, at least not in the traditional sense.
Of course they can be, in any reasonable sense. The only sense that whites can't be victims of racism under is this redefined sense, finely calibrated to exclude whites and designed to ignore institutional power blacks do have in the modern world.
Dr. King used to say. "I get so tired of trying to save the White man's soul."
He also said that he had a dream that people would not be judged by the color of their skin. Unfortunately the modern "liberals" and "progressives" have all but abandoned that dream.
Because if it is not (fill in blank group here) fault, then whose fault is it?
It's always the fault of heterosexual white men, no matter what, at least according to faux-liberals.