I think the argument goes that the main reason manufacturing moved overseas was because of cheaper labor. When robots take over, that advantage disappears. It's not that China can't make robots, it's that they don't have as big an advantage over other countries anymore.
They've traded one advantage for another. Now that they're doing most of the world's large-scale manufacturing, they have the manufacturing expertise. That's a huge advantage that's not accounted for in the article.
