If we pursued the "Most Qualified" in its truest form, then ~95%[1] of the jobs in this country would be handed over to foreigners. [1] The USA is less than 5% of the worlds population.
This would be true if you're talking about randomly picking people from around the world to live in the US for their formative years and go through the US education system (at which point they barely count as "foreigners"). This isn't reality, though, and if you're talking about hiring a worker today, a large swath of that 95% won't speak English, or won't be literate, or will have never received a formal education, all of which are disqualifying for pretty much every job in the US.
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This would be true if you're talking about randomly picking people from around the world to live in the US for their formative years and go through the US education system (at which point they barely count as "foreigners"). This isn't reality, though, and if you're talking about hiring a worker today, a large swath of that 95% won't speak English, or won't be literate, or will have never received a formal education, all of which are disqualifying for pretty much every job in the US.