The American system is so superior that it will not suppress and force others to receive subsistence allowances everywhere. How can we go to America?

As you said, if you want to go to America, you must have a green card. The following is the process of green card.

Green card is a common name for foreigners' registration card and a proof of long-term residence status. It used to be green, so it has this name. Now the green card is actually white, with red and blue in the middle. Immigrant visa is closely related to green card, and you can get a green card if you get an immigrant visa.

Green card holders can apply for American citizenship after living in the United States for a certain period of time. Few people become American citizens directly without obtaining a green card.

The rights and interests enjoyed by green card holders are very different from those enjoyed by American citizens. Most importantly, if the green card holder commits a crime in the United States or leaves the United States for more than 1 year, he will lose his green card, while American citizens will not lose their American citizenship under the same circumstances.

There is no limit to the number of green cards issued to immediate family members of American citizens and special immigrants. However, the number of green cards issued to other eligible people is limited by the annual quota. Green cards will be issued to six priority personnel, with 270,000 cards issued each year, and a country can only get 20,000 green cards at most. Green card and permanent residency are equal, and getting a green card means getting permanent residency in the United States.