> > "If you don't allow firms to hire immigrant workers, they just become smaller firms," Lewis said. "They are not replaced with US workers. Instead, the output of the firm shrinks, and there are fewer total workers."

> This is incredibly important. Everyone who fears immigration is going to take their job should read this and realize that fear is not only false but inverted.

That would not happen if "cleaner" were a slightly better-paid job and "scrum master" had to become a slightly worse paid job. "Who will pick the cotton?" is a classic, but that doesn't make it automatically correct.