It is a hugely more pernicious and dangerous form than the more explicit varieties because of a fundamental truth - the spirit of a person can only be diminished by loss, bereavement or defeat, in the long run the human spirit will always rise up and triumph in the face of overt oppression because no one can respect his oppressor. Although people whose ancestors came from different geographic regions look different, no scientific or biologic evidence exists to support even the idea of race. Not surprisingly, it is rare, today, for a person to admit to being a racist. It is even rare for people to openly espouse racist philosophy. Someone can be a racist regardless of their religion, intelligence, cultural level, social status, benevolence towards members of their own race or social motivation.
Racism is thus only implicit in behavior.
Reducing people of other races to racial stereotypes . This can often be done in very subtle ways. For example, confusing race with culture, a belief that certain races are more adept in particular jobs or functions, a belief in differences in intelligence between the races, etc. Advocation of segregation. This advocation represents a belief that different races should live apart, be educated separately or not intermarry.