Ethnocentrism can make you sort of blind to new things in other cultures and sometimes make you right them off as strange or unnatural, when in fact it's most likely just that it's something we aren't used to seeing in our own cultures. The United States has a lot of very deep-rooted and socio systematic ethnocentrism that I think affects a lot of Americans so heavily they don't even notice it, but ethnocentrism comes in many forms throughout many groups of people, not just Americans. Ethnocentrism can make you unable to fully take in another culture, and therefore unable to fully understand it and the people it belongs to.
