The 'End of Ideology' debate, prominent in the 1950s and 1960s, primarily argued that grand, all-encompassing political ideologies like communism, fascism, and even traditional liberalism, had lost their relevance and appeal in advanced industrial societies. Proponents such as Daniel Bell and Seymour Martin Lipset contended that the major ideological battles of the past had been resolved, particularly with the triumph of liberal democracy and the welfare state in the West. They observed a growing consensus around pragmatic problem-solving, economic growth, and social welfare, rather than revolutionary or utopian visions.

According to this thesis, the complexities of modern industrial societies required technical expertise and rational administration, rather than ideological fervor. The Cold War context also played a role, as it was argued that the West had found a stable, prosperous model, while communist ideologies were seen as failing. However, the 'End of Ideology' thesis faced significant criticism. Critics pointed to the emergence of new social movements (civil rights, feminism, environmentalism) and the persistence of deep-seated inequalities and conflicts, suggesting that new ideologies were constantly forming or old ones re-emerging. They argued that the thesis itself was an ideology, serving to legitimize the status quo and dismiss radical critiques. Despite its limitations, the debate highlighted a shift in political discourse and the evolving nature of ideological commitment in the post-war era.