Answer:
To seek a better life.
Explanation:
The United States is seen as the land of unlimited possibilities by many. It is also seen as a free land, not at war with anybody, and as a country with constitutionally guaranteed civil and political rights.
Most people who immigrate to the States are in some kind of danger. They may come from a war-worn country as Syria, for example, where a normal life is difficult. They may be refugees fleeing a dictatorial regime in Africa or they may be prosecuted for their religious or political views.
All of them have one goal: to make a better and safer life for them and their children.
