Why is immigration becoming a major concern for the US?

The United States is known for being a land of immigration and welcome, and stories of immigrants coming to try their luck in the United States are not rare. However, it seems that more and more Americans are hostile to immigration, as the success of Mr. Trump proves.

Europe the same thing, but it is much less surprising because in Europe there are very strong national identities.


Just for fun, I share with you this speech.

https://youtu.be/2R8QxCD6ir8
Why is immigration becoming a major concern for the US?
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