Why were the working classes dissatisfied with the prevailing economic system

Well, Karl Marx taught in his lectures that society lives in a constant state of conflict, which it is happening because the working class discovered that the means of production are being held by a small group of people, the capitalists. These were the owners of factories, farms, properties in general, forcing the worker to accept the work conditions offered to him, or no work at all, knowing the fact that other person would take the job, maybe for less pay.

Finally, the workers began the Luddite movement, with an act of protest, destroying the machines and manufactures of their workplace, along with many others actions, looking for accomplish better work conditions, workers rights and guarantees, and some others, more radicals, claimed for a entire system transformation, one that gives the working class entire control of the capital goods.

" In bourgeois society, therefore, the past dominates the present; in Communist society, the present dominates the past. In bourgeois society capital is independent and has individuality, while the living person is dependent and has no individuality." Communist Manifesto (1848)

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof