Answer:
social dominance.
Step-by-step explanation:
Social dominance orientation is a theory the explain intergroup ideologies by focusing on strengthening the group-based social hierarchies. It explains an individual's preference for group-based dominance and discrimination. It studies how an individual's attitude and belief are modified by inter-group inequalities at the social level.
Mordechai's belief that Jews are better than others reflects discrimination towards other social groups and therefore he is demonstrating a social dominance orientation.