You said "Increasing of the unemployment is a problem of replacing human in the workplace." But not in other fields, but only in the simple labor fields, unemployment will increase. If we use robots and develope them, we will be more profitable in the long term by expanding our jobs in robotics. Then, we can solve the problem of unemployment and so on they can get more stable job. So increasing of unemployment is only a small part. Therefore, I think that can't be the problem.