I highly doubt a company can find 20k senior Photolithography experts in rural Nebraska if a company wanted. No matter what money they are paying. They'll have to bring them in.
Of course I am exaggerating, but this is not a 1 dimensional problem.
Of course I am exaggerating, but this is not a 1 dimensional problem.
This is why in the modern world some sectors are always crying about "worker shortages" while asking always more migrant workers to come in - salaries are compressed as a result, and locals have no incentives to enter the branch.
Hence importing workers may be useful for needs that are limited in time and space (say, install a specialized foreign machinery in a power plant), but systematic importation leads to dequalification of the local workers, who flee the branch that has now low salaries.