The US economy does not "Need" migrant workers. Big business does. They reap the benefits of having cheap labor who they don't have to provide any benefits. Illegals have actually been suppressing wages in those jobs that "Americans simply won't do" (God, I'm sick of hearing that!).

It's not that Americans won't do them, they just won't do them for a pittance. Our economy would get along fine with illegals, we'd just have more Americans employed and paying their own way, wages would rise and so would prices but I'm willing to do that as we would save money in many other ways, ie. the COSTS of illegal immigration - healthcare,education, etc.

And I am in agreement with those that say that most illegals send a lot of money home, so they are not exactly spending all their money here.