You said “ Some researchers say that using robots must increase an unemployment of people. It is true, but this problem can be relieved with making new jobs that are related to robots.” As you said, the new jobs will made in only the area that is related to robot. But robots are going to replace jobs that they used to do in various fields.  Like doctor, teacher, driver, and farmer, ect. In this situation, old jobs are vanishing away in a large amount  than a number of new jobs made by replacement. Finally a number of jobs will decrease. So i can’t agree with your statement.