What was the main reason native born Americans not happy to see the new immigrants

Many of these new immigrants were coming from eastern and southern Europe and for many English-speaking, native-born Americans of northern European descent the growing diversity of new languages, customs, and religions triggered anxiety and racial animosity.

Explanation:

Thus nativism has become a general term for opposition to immigration based on fears that immigrants will "distort or spoil" existing cultural values. In situations where immigrants greatly outnumber the original inhabitants, nativist movements seek to prevent cultural change.

Explanation:

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churchill warned that the soviet union had cut eastern europe off from the west with an "iron curtain."

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