The following paragraphs from a NewsMax daily article about (sending
Chinese babies back to be cared for by family until they are school
age) mentioned the price these Chinese illegal immigrants paid to come
to the USA:  $50,000 – a debt they are working to pay off. 
Smuggling is evidently a lucrative business.

 
Since arriving in the U.S., the woman and her
husband have worked at least 12 hours a day to pay off the $50,000 debt
they owe to smugglers.

“For Angela, to move to China is the best for her future,” the new mom
said. “This way my husband can save money for our own place when she
comes back.”

Illegal immigrants whose children are born in the U.S. can qualify for
subsidized child care, but many are afraid to provide proof of
employment and worry about revealing their immigration status.

Private day care is far too expensive for most of the immigrants