> OP should have reached the conclusion that there are alternative worker arrangements which would benefits workers globally.
This is specifically what he DOESN'T want. What he's saying is that someone from Boise, ID shouldn't complain too loud about location-based pay, because taking the logic to its extreme would mean redistributing all this worker and consumer welfare with the rest of the billions of workers worldwide and, surprise surprise, that would actually suck to essentially every American, doesn't matter how poor.
So, basically: "Hey guys, don't rock the boat. We might be crew but you don't want the rowers competing for our place"