Common sense groupism occurs when ethnic groups are thought to be distinct bodies with measurable traits. People often conceive racial, national, and ethnic conflict as the friction between the idea of “us and them”. A group that is similar in nature would find that groups that have different traits would be a possible threat. In doing so, they unintentionally take on the vocabulary that continues to perpetuate the conflicts between groups, solidifying the presence and concept of ethnic groups. This widespread idea of common sense “groupism” is being challenged by Brubaker. Ethnicity is understood to be socially constructed, but he also attempts to show that this division between groups that sharply contrast with one another based on various traits, were not caused by violences but were rather the result of it. Brubaker shows that such concepts of ethnicity, race and nationhood (groups) exist to help us make sense of society, of the world around us in terms of representations and ways to help identify each other. They can also be seen as processes, they did not exist is contention with each other, rather they develop differences because of different people’s perspectives in understanding each other. Groupism as an event allows us to treat groupness as an occurrence, as something that ‘happens’. For example, the idea of Groupism has been instilled such that a student in English class feels like she has to act like she did know how to speak English well in order to get along well with other students. Any “outstanding” person has a chance of getting a different treatment from the rest. When we take groups for granted, common sense groupism forms. Society has a habit of trying understand society with regards to the many individual groups that exists within it, to piece together a society that is an amalgamation of all these different groups. To overcome such rudimentary view of society that perpetuates this “us vs them” notion, Brubaker argues that by understanding the differences between ‘group’ and ‘category’ we can no longer see ethnicity as a group.