As someone who was basically an indentured labourer (not in US), this is 100% true.

But at the same time, it was my opportunity to get out of my country. I traded a couple of years of light slavery in exchange for a potentially higher level of freedom later.

I got lucky, though, and I managed to get a good job later. Not everyone would be lucky. Some of my friends are still working in the company that brought me in (Infosys).