I worked for a Fortune 100 tech company that claimed they couldn't get enough qualified workers to fill open jobs. It was utter bullshit. The workers they brought in from out of the country were typically right out of school or with a very short work history who needed a lot of training, not the highly skilled workers the company claimed they needed.

The foreign workers were cheap and routinely worked 100 hour weeks because they had no family or social life in the U.S. American workers with families and lives outside of work could not and would not work those kind of hours consistently. The company then would peer rank employees and (surprise!) the foreign workers working 100 hour weeks would perform more tasks than those working 60 hour weeks.

U.S. citizens would routinely be denied raises and ultimately forced out of their jobs because of this practice. What companies want and foreign workers provide is a cheap workforce that will work 100 hour weeks and can't readily switch jobs. Only a government that represents corporations instead of people would facilitate this kind of employee abuse.