[Daishiman]

If the entire value a tech worker creates is properly captured by their salary, sure.

But if that were the case then no one would bother with spending the insane amounts of money it costs to get qualified foreign labor.

Talent is global and the difference a skilled individual adds to a company has a multiplicative effect.

[sparkling]

You seem to assume that foreign labour can only be used if imported to the US. That is not the case, consider remote talent.

[Daishiman]

Remote talent pours those same resources into another location to its benefit. Which is fine for the other countries; not so good for the US's position as a tech hotspot.