Why does the aclu identify "organized movements of labor and of the farmers" as waging the "chief fight" for civil liberties in the united states?

They did it that way because they believed that there needs to be a higher level of control over the industry in order to prevent the exploitation of the people which was a situation that was happening at large on a daily basis. If the government protected workers, then everyone would live better since being a worker is something common to anyone, no matter the group that they come from.