Supremacist movements are groups that believe one race, ethnicity, or nationality is superior to others. These movements often promote discrimination, segregation, and violence against those they consider inferior. Examples include white supremacist groups, which advocate for the dominance of white people, and ethnic nationalist movements that seek to establish a nation based on a specific ethnic identity. Such movements can arise from various social, economic, and political factors, including fear of losing cultural identity or economic competition. They often use propaganda to spread their beliefs and recruit members, leading to tensions and conflicts within societies.