monoculturalism

Monoculturalism is the policy or process of supporting, advocating, or allowing the expression of the culture of a single social or ethnic group. It generally stems from beliefs within the dominant group that their cultural practices are superior to those of minority groups and is often related to the concept of ethnocentrism, which involves judging another culture based on the values and standards of one's own culture, though this is usually untrue if cultural nationalism is dominant, as opposed to ethno-nationalism. It may also involve the process of assimilation whereby other ethnic groups are expected to adopt the culture and practices of the dominant ethnic group. Monoculturalism, in the context of cultural diversity, is the opposite of multiculturalism.

Rather than the suppression of different ethnic groups within a given society, sometimes monoculturalism manifests as the active preservation of a country's national culture via the exclusion of external influences. Japan, South Korea, and North Korea are examples of this form of monoculturalism. However it may also be the result of less intentional factors such as geographic isolation, historical racial homogeneity, or political isolation.