[threedaymonk]

> For countries that are based on a unique language, ethnicity and culture, it is damaging.

Where are these places? Very few countries are based on a unique language, ethnicity, or culture, and those that are have generally only become so as a result of active suppression of minority cultures and languages.

In fact, apart from a few microstates and isolated islands, I can't really think of any monocultural nations.