Final answer:
Mexican immigrants in the U.S. faced racial prejudice, employment discrimination, financial dependency, and legislative marginalization, which often led to a cycle of poverty and community isolation.
Step-by-step explanation:
Mexican immigrants faced a multitude of hardships once they arrived in the U.S. They encountered racial prejudice, were often relegated to the lowest-paying jobs under terrible working conditions, and suffered from systemic discrimination in legislation such as California's Greaser Act. In addition, many immigrants found themselves in financial dependency due to debts from their journey or the low wages they earned, preventing them from achieving financial independence and trapping them in a cycle of poverty. As a consequence of these challenging circumstances, Mexican immigrants frequently ended up living in isolated ethnic enclaves, experiencing marginalization from mainstream society.