Were immigrants given a fair chance to thrive in the United States in the 1800s?​

In the late 1800s people in many parts of the world decided to leave their homes and immigrate to the us fleeing crop failure land and job shortages rising taxes and famine many came to the us because it was previewed as the economic opportunity so
Technically they were they were given a far chance but at the same time they had to start over completely and live off of trying to farm they were out on their own.