Thank you for writing a helpful essay. But I have opinions that are contrary to your thinking. For the second reason robots should replace human workers, you said robots can work in a sophisticated and efficient way And robots don't need to rest except they need to provide energy. These are the advantages of just looking to the distant future without considering the initial problem. In order for the robot to work efficiently, we have to pay the appropriate initial cost. And we are going to cost a lot of money when they get energy. If we don't look at this real problem, but just look at the tip of the iceberg, we're going to fail.