Hawkins told me that if a Sea Org member sought outside help he would be punished, either by being declared a Suppressive Person or by being sent off to do manual labor, as Hawkins was made to do after Miscavige beat him.

NEWYORKER: The Apostate

And since educated immigrants are less likely to fill low-paying manual labor jobs, a demand for illegal immigrants willing to do that work would be created.

NPR: Critics Dispute Effects of Immigration Point System

When you don't feel the pain, you may do something to injure the area further, a serious concern in patients who perform manual or heavy labor.

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