[boringuser2]

You're hand-waving the effects of a labor surplus created by immigration on wages.

During covid-19, when immigration was suppressed and the labor surplus was attenuated, something amazing happened -- wages rose across the board in America.

Yes, outsourcing is a huge issue. It is dealt with in various ways, and there are substantial barriers to in sourcing (my company has tried to do this, but decided to hire in America due to substantial costs).

Immigration is also a huge causative factor impacting wages and labor bargaining.

If you're a protectionist, that's good, I also support that. But you should probably apply your ideology across the board rather than selectively, which I suspect you cannot do due to your partisanship.