Anti-Majority Racist
A person, most likely from a minority who has a misguided belief that the race of a majority of the population is a fundamental determinant of human traits and capacities and that racial differences produce an inherent inferiority of a minority race.

Someone who denigrates the Race or Ethnicity of those who are a majority of the citizenship, a civilization or a Country!

Example: An African American who's Ethnic population is only 13.4% (2022) Referring to a 76.3% (2022) white majority member of the ethnic group in the United States as a Racist and uses words such as white supremacy, white supremacist, white rage, cracker, etc. and who teaches Critical Race Theory.
You are an "Anti-Majority Racist" for calling me (white man/woman) a Racist!
I am not a white supremacist! You are a "Anti-Majority Racist" for calling me that!