The document discusses the concept of prejudice, defining it as a negative attitude or behavior directed towards individuals based on their group membership, and explores why prejudice persists despite social efforts to combat it. It examines psychological theories such as categorization, stereotypes, authoritarian personality, and dogmatism, which contribute to the maintenance of prejudiced beliefs. Ultimately, the text highlights the complexities of prejudice, suggesting that various emotional mechanisms and societal structures play a significant role in its continued existence.