Why do people leave their home country and what keep them from succeeding in the U.S?

Why do people leave their home country and what keep them from succeeding in the U.S?

You have to use all the readings and the visuals that are provided for the analysis (5 readings and 1 film). DO NOT use outside sources.
For the film, you need to describe all the scenes that clarify the topic. You DO NOT need to provide the specific timing (hour/minute).
For all the readings, you have to point out the specific pages of the quotes that you take for the analysis. Take all the quotes that related to the topic to strengthen the topic.
Film link: https://www.youtube.com/watch?v=3u7DKTBP4vw&t=2916s