If everyone in the US makes $3 per hour who does Carrier sell to?
I assume Carrier would sell to the people not stupid enough to earn $3 per day. But you miss the point. The average wage in Zimbabwe is about $3 per day, why didn't Carrier move to Zim? The easy answer is corruption and the government's habit of seizing private property. US has its own form of corruption in the form gov't overreach, tax and Govt/Union cronyism. When these factors increase costs, they will move overseas to markets in which labor offsets the cost of corruption.