Final answer:
Karl Marx, a proponent of Marxism, built his theory largely on the growing disparity between the proletariat and the bourgeoisie because of capitalism.
Step-by-step explanation:
Karl Marx, a proponent of Marxism, built his theory largely on the growing disparity between the proletariat and the bourgeoisie because of capitalism. Marx argued that the bourgeoisie, members of a social class that owned the means of production, were primarily motivated by the desire to exploit labor and keep the excess value wage earners produced in order to buy political influence. Eventually the capitalist system would collapse and workers reclaim control of society. Marx argued that the struggle between classes was the root of all historical conflicts. He predicted that society would eventually replace current economic systems with socialism, a system in which the public, not private companies or individuals, owns the means of production.