South America is not a colony of Italy, but why is it so significant?

18 ~1in the middle of the 9th century, Italy was still a backward country that could not be unified and occupied colonies. The domestic population is overpopulated and the economy is poor, so the poor immigrate in large numbers, mainly the United States in North America and Argentina, Uruguay, Brazil and Chile in South America.

Therefore, there are more Italians in these countries, such as Argentina, where there are as many as 20 million Italians; Brazil 25 million, USA180,000 ...