Final answer:
Karl Marx criticized capitalism for exploiting workers by not fully compensating them for their labor, leading to alienation and significant inequalities. He suspected these issues would result in a worker revolt, culminating in the replacement of capitalism with communism, which he viewed as a fairer system.
Step-by-step explanation:
Karl Marx believed that capitalism is bad for workers because it creates a system where the bourgeoisie exploit the proletariat for their labor, leading to significant social and economic inequalities. Marx contended that the value of any produced object should equate to the amount of socially necessary labor invested; however, under capitalism, this value is not fully passed on to the workers. Instead, a substantial portion is claimed by capitalists as surplus value. This, according to Marx, constitutes an unfair system where workers are not paid the full worth of their labor. Furthermore, the system led to workers' alienation, not just from their labor but also from each other, as they were forced into competitive dynamics over wages, job security, and bonuses.
In Marx's view, eventually the inequalities fostered by capitalism would become so extreme that a workers' revolt would ensue, leading to the downfall of the capitalist system and the establishment of communism; a system he considered to be more equitable because everything would be owned communally and distributed as needed.