So many issues here. I'm sorry but you deeply misunderstand a lot of things about chip manufacturing.
These really, really, really are not laborers. They have nothing to do with labor. These engineers are effectively the same level of cutting edge as the scientists the US picked up after WW2. They are literally national resources - valuable pieces on the international game board.
No, they don't get deported to economic rivals. Ever. They are not cheap labor. They are line-item assets in the military-industrial complex.
... You really do not understand the nature of the game that's being played here, and that's okay. Feel free to keep thinking of world-class scientists as nothing more than indentured servants. Again, extremely xenophobic to dismiss their intelligence and personal volition, as if they're just slaves waiting for america to import them.