The immigrants to the United States in the late 20th century came from

Europe and Latin America

Explanation:

The immigrants who arrived in America during the early years of the 20th century were from Eastern and Southern Europe and Latin America. The reason for their arrival was a lack of economic opportunities in their homeland. The majority of immigrants crowded into the growing cities and towns. They came here to work as labours and to start a new life. They lived in close communities in harmony because of their language, practice their religion, and culture.

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others