Darwinian fitness was never solely about “braun” but the ability to adapt. If these people cannot adapt, then maybe they weren’t the right people to hire for the job.

The hidden factors you mention are based upon conjecture. You are right remote work proves that you can hire anybody in the world. However, that doesn’t mean companies should pay a person that lives in another country a lower wage than the American counterpart.

The platitude of “you get what you pay for” really shines in this discussion. I have witnessed amazing talent from all across the globe that produced excellent results for the team and company. At the same time, I have also seen dog shit work produced by Americans and abroad. In the latter group, I noticed the individual was paid much lower than expected or in a bid for contracting companies the company took the lowest bid offered.

I have seen numerous projects fall significantly behind schedule due to buggy features or just constant re-work of terribly implemented features because someone at the project management level thought they could convince poorly paid people to push out quality work.