Of course there will be disadvantages to robots replacing human in the workplace. But I don't think the widening gap between the rich and the poor is caused by robots replacing human in the workplace. That is a problem to consider when using robots for convenience is popularized. And by then, robots will become common, and there will be price fluctuations, which will stabilize the economy again. Therefore, such problems will occur at a very low probability. As a result, I don't think it's right to say that deepening the gap between rich and poor is a disadvantage because of robots that replace human in the workplace.