A person that obligingly benefits from historical racial privilege. This can be someone who benefits (consciously or unconsciously) the blatantly racist status quo by supporting it or simply not fighting it. NOTE: Black Americans, Asian-Americans, Indian-Americans, Latino-Americans, therefore, cannot be racist; they can be hateful or vengeful, but NEVER racist for they do not have the historical power/pretext.
In a world without affirmative action, all "qualified" white people who entered college without considering the context/their inherited privilege would be racist.
The unconscious racist does not think about the American penal system: modern-day enslavement, free labor, ethnic cleansing.
Many Chinese still see the Japanese culture as embedded with racism due to the years of imperial control and maltreatment they inflicted on other Asian cultures.