Answer:
Most native-born Americans are unwilling to pick oranges because they view these jobs as demeaning, physically demanding, and better left for immigrants.
Step-by-step explanation:
Most native-born Americans take to white-collar jobs instead of blue-collar jobs because the latter involves hard manual labor with low pay. They view these jobs as unfit for them, therefore illegal immigrants take up these jobs that do not require many formalities to survive.
Illegal immigrants who do these jobs are paid low wages. They might have to work overtime without being adequately compensated. They also risk being treated unfairly by their employers because they cannot make any legal claims.