I would be more worried about the Chinese owning this market (like they did with robovacs) and not leaving much for Korea/USA outside of the defense market. We are still 5 years away from a general purpose functional household robot, but the rate of advances, even if they slow down substantially, will get us there.
The west can compete but lack the will to do so see the consumer drone market, note that attitude had better change or else the rest of the century is going to be hell.