The fundamental purpose of Marxism is the total control of a population under the belief that individualism and free markets lead to great disparities and inequalities and injustices and unfairness. Now, this is the outward appeal. Marxism is evil, and Marx knew it, but the appeal that seduces people is its justice and equality and fairness. What they don't tell you is the equality is spread equally to the point everybody's miserably equal and miserably the same.