Immigration affected the demographics in the United States by making it a multicultural nation.
<u>Explanation:
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The United States is one of the nations with the highest full factor. This makes learned professionals from around the world wanting to move to the US.
The United States already has a huge population of migrants that accounts for 14.4% of the total population of the country.
These migrants partially follow their cultures occasionally. This makes the United States a multicultural nation owing to its varied demographics.