Why Karl marx believed capitalist society was irrational?

Karl Marx believed capitalist society was irrational because it prioritizes profit over human needs, leading to exploitation and alienation of workers. He argued that the relentless pursuit of profit results in economic crises, where overproduction coexists with unemployment and poverty. Moreover, he saw capitalism as a system that commodifies everything, reducing human relationships and labor to mere transactions, which undermines true human potential and social cohesion. Ultimately, Marx viewed capitalism as a system that fosters inequality and social discord, contradicting the ideals of a rational and fair society.