The often unavoidable process of judging the behavior of others by our standards and tending to see "them" as inferior to "us" is called ethnocentrism.
Step-by-step explanation:
Coined by William G Summer, an American sociologist, ethnocentrism is the word which is used to describe the process of comparing one’s culture with another and in the end being the judge and declaring that one’s own culture is more superior in terms of customs, formalities, rituals, languages and many other components.
As these are the factors that define a culture and that is something which becomes the identity of one. When it is compared, the end result is pride and a thinking that other cultures are inferior.