What was the main idea of social darwinism and how did it compare with the idea of individualism?

Social Darwinism was the belief that life and society are governed by a "survival of the fittest" mentality, where only the strongest and most capable individuals or groups succeed. Individualism, on the other hand, emphasizes the rights and autonomy of the individual over the collective good. While social Darwinism justifies inequality and competition as natural and beneficial, individualism values personal freedom and self-reliance.