Statement first is true in this regard because the Spanish had a caste system that included free Africans and former slaves. Cristopher Columbus established the “first Spanish colony” in America, in what now is Haiti and The Dominic Republic.
Since the beginning, Spanish used slavery from Indigenous people in the Americas and they also brought black Africans. Spanish had “Castas”, the equivalent of racial and social hierarchies. Spanish considered slaves inferior beings.
It is true that some people of African descent were not slaves in Spain's American colonies. We know this because of the written records that have been left from that era. Although most African people in America were enslaved, some of them were able to achieve their freedom, particularly in the Spanish colonies. There were several pathways for this. Some slaves were emancipated. Other had such a small percentage of African heritage that they could be considered members of other races. Finally, some others were able to buy their freedom or achieve it through heroic and admirable deeds.
Colonial rule was oppressive in the fact that many natives of colonized nations were killed or enslaved. Benefits of it would be the nations that were colonized usually has knowledge brought to them. They also prospered most of the time.
Without the use of machinery many Americans will be employed to do various jobs. Their unemployment rate during that time will decrease. Another consideration is that there is a need for expertise in handling heavy machinery. One must be learned enough not only to drive heavy machinery but also to operate it and maintain its good condition.
