Explain what ethnocentrism is and what effect it has on one’s cultural identity

Ethnocentrism is the tendency to look at the world primarily from the perspective of one's own culture. ethnocentrism often entails the belief that one's own race or ethnic group is the most important and/or that some or all aspects of its culture are superior to those of other groups. within this ideology, individuals will judge other groups in relation to their own particular ethnic group or culture, especially with concern to language, behaviour, customs, and religion. these ethnic distinctions and sub-divisions serve to define each ethnicity's unique cultural identity. 

Is there more to this?