Immigrants are only arranged in the United States. Why do people choose to immigrate to the United States?

If we must talk about the benefits of American immigration, we will have less worries after immigration and be more confident than our peers to pursue our dreams. The United States I see is a country with a relatively fair social legal system and a relatively perfect social welfare system. Although there is no chance of getting rich in a short time, most of the efforts can be richly rewarded.