But, we don't know exactly what will be happened to ex human employees. Lost their job and can't do anything.
A job with the McDonald's is not a high paying one anyway. Most of their employees are illegal immigrants and individuals who do part-time job, such as students. I don't think this initiative will have a sizable effect on the unemployment rates, although in the United States, McD is one of the top employers, in terms of the number of employees.