The Jungle, Ch. 1-22 : what developments converted optimism into pessimism for

The Jungle, Ch. 1-22 : what developments converted optimism into pessimism for immigrants arriving in the United States, why was it easy to exploit immigrants, what were working conditions like in Packing Town for those employed in those facilities, over time, what physical and psychological changes took place in the lives of Jurgis and the others—and there were plenty of them, and what eventually led Jurgis to escape into the countryside and become a drifter. Employ specific incidents and characters from the novel to make your points.