H-1B employees can only work for those companies that sponsor them. This significantly cuts down on their ability to participate in a free and even employment

H-1B employees can only work for those companies that sponsor them. This significantly cuts down on their ability to participate in a free and even employment marketplace. In addition, if an employee looses his current position - they have 90 days to get a new sponsored position or they must leave the country. As you can see, this puts significant unfair power advantage in the hands of the employer.