When they are brought on a visa, they cannot job hop like they can in India. They are usually stuck in their position for 5 years until they can get green cards

When they are brought on a visa, they cannot job hop like they can in India. They are usually stuck in their position for 5 years until they can get green cards. I would be willing to bet if they gave these workers Green Cards instead of H1-B's, this practice wouldn't be as popular because the worker would be able to compete freely in the market.