Attention Deprivation
A masked psychological technique applied perhaps intuitively by members of the dominant race, class, or ethnicity in society primarily by denying eye-contact, ignoring, and sometimes pretending to be a non-person or seeming to be unhappy or even angry at their victim for no apparent reason to intimidate, injure, disempower and put-down members of society's less powerful groups.
The descendants of the currently dominant race which invaded and occupied that part of the world apply the psychological technique social scientists call "attention deprivation" (denying their victims eye-contact, ignoring them, and sometimes pretending to be very unhappy or even angry at them for no reason) to dominate the descendants of the people who inhabited that part of the world thousands of years before them.