Generally speaking, "assembly line jobs" did not represent an obstacle during this time, since this in fact increased productivity through the "specialization of labor".
Answer:
Rome fell through a gradual process because poor economic policies led to a weakened military which allowed the barbarians easy access to the empire
Explanation:
Jackson's plans toward Native Americans were controversial because he wanted to remove the Native Americans, though they were the original people who lived in the land. The land should've belong to them, they originally inherited the land.