What was the main idea of social darwinsts such as herbert Spencer and William graham summer?

Social Darwinists like Herbert Spencer and William Graham Sumner applied Charles Darwin's theories of natural selection to human societies, arguing that social progress results from the survival of the fittest. They believed that individuals and groups succeed in society based on their inherent qualities, leading to the idea that social inequality is a natural and beneficial outcome. This perspective often justified Imperialism, racism, and economic inequality, as it framed these issues as a reflection of natural order rather than social constructs.