The first is that with the increase in immigration, we have become a multicultural society, and the national identity of a country is diminishing. For example, in France, as Muslim immigration has increased in recent years, the number of second-generation immigrants who cannot communicate in their native language, French, has increased. A similar phenomenon is occurring in the U.S., where a large number of immigrants cannot speak English, their native language, making it increasingly difficult to educate them in their native language. This has fragmented society and threatened culture.