That was my thought to recently. If you have robots replacing low wage workers, which most people don't really realize was nothing more than the evolution of slavery, then you have zero incentive to produce in said low wage countries. The next wave of "low cost production" regions will be determined by access to low cost energy and low cost space. In many ways, I suspect that the robot based production could even move towards the north as cooling may play a significant factor. We kind of see some of that already as Google and the likes have been moving their massive server farms into northern regions for cooling purposes.
Another factor in this matter is that the uncomfortable reality is that "we" need to stave off the influx of uneducated and unskilled people. Reality is that people will lose ever more value, especially as, rather oddly, the liberal autonomist types advocate for things the they don't realize will only commodify the vast majority of people.