But the US has its own entrepreneurs and business leaders being educated and trained right now. They will fill the gap, along with some foreigners too, but the foreigners will not be the only ones or even the majority. We have people graduating every day from business school right here, as well as entrepreneurs starting their own small businesses.

But you are partially correct about not “moving up” in some companies. What these companies do is take people who have degrees in business or management and employ them in those capacities rather than move up already existing employees.

Have you noticed in grocery stores baggers are mentally challenged often? They will remain baggers for decades. Same with cashiers now who may not be mentally challenged beyond light Aspergers but they don’t have the capacity to move up into management.