Generally speaking, "assembly line jobs" did not represent an obstacle during this time, since this in fact increased productivity through the "specialization of labor".
Ethiopia was the only African nation that was not colonized, the Ethiopian forces successfully defeated the Italians during the battle of Adowa which was led by Menelik the second. This helped the nation kept their independent.Unlike other African nation Ethiopia had strong military force and huge sense of nationalism which made their resistance successful.