6. In-group Loyalty
The instinct to protect and prioritize one’s own group can foster tight bonds, but it also has a darker side. In-group loyalty often leads to the marginalization or mistreatment of outsiders, fueling prejudice and even violence. Many historical conflicts have roots in this “us versus them” mentality, as described by Psychology Today. When loyalty becomes blind, people may excuse or participate in harmful acts against those who don’t belong, believing it serves their group’s interests.