Yes. Step 1 of remote is “are you really better than someone in Indiana with an $800 mortgage payment?” Step 2 is “And are you really better than the European Phd at half that cost?”
And the answer being "the limited number of local companies paying high wages and the limited number of American companies willing to hire someone in Eastern Europe reducing my leverage."
For a similar reason why a person pressing a button to pour coffee in Starbucks on Manhattan gets 10x more than a person pressing a button to pour coffee in Starbucks in São Paulo.
With so much wealth in America, do you really think life is going to be better for you when you're competing against everyone in the world? Sure, I bet the people in Indiana, or India are happy, but your SF salary is going to be demolished, and your local community is going to death spiral as to the wealth evaporates.