Same goes for English. Pick a language. Pick a culture.

Ethnocentrism works equally for all languages and cultures.

It’s not about the language first. It’s about overcoming our idiotic primate nature to believe that our group/pack/population is better than anther.

While it was a survival mechanism thousands of years ago, now it just impedes the off humanity. Usually through mindsets like you’ve just outlined which feeds fear and bigotry instead of advancing our society.