You are correct in that part of the reason they are hired is because they are ostensibly indentured servants. They cannot quit because without another job lined up they have to leave the country.

But I don't think we should be correcting that issue to their benefit while Americans are dealing with a horrendous job market and high unemployment rates. And in my experience, it was often other indians abusing the indian foreign workers. These behaviors are incompatible with western society.