Abraham's parents taught him that all white southerners believe that aftican americans are inferior to whites. this is an example of what

This is an example of "a prejudice".

Racism and prejudice has been available in relatively every human advancement and society all through history. Prejudice is a progressing power that contrarily impacts the lives of Americans consistently. The supremacist mentality in America comes from the seasons of servitude, where blacks were believed to be mediocre compared to whites.