Prejudicial behavious — Ma is RC (anag) (6)

I believe the answer is:

racism

(Other definitions for racism that I've seen before include "Prejudice against people of different origin" , "Ethnic discrimination" , "Prejudice against people of other countries or nationalities" , "Prejudice against another people" , "Prejudice regarding ethnicity" .)

I've seen this clue in The Guardian.

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