Anti-communism
"A spectre is haunting Europe – the spectre of communism. All the powers of old Europe have entered into a holy alliance to exorcise this spectre: Pope and Tsar, Metternich and Guizot, French Radicals and German police-spies. Where is the party in opposition that has not been decried as communistic by its opponents in power? Where is the opposition that has not hurled back the branding reproach of communism, against the more advanced opposition parties, as well as against its reactionary adversaries?" — Opening of the Communist Manifesto
Anti-communism is a reactionary position which is opposed to the creation and spread of communism, revolution, and Marxist movements. Anti-communism is interlinked with support for the capitalist system, and has been a core aspect of anti-Semitic and fascist tendencies. Nominally "left-wing" opponents of communism are known as the non-communist left.
Anti-communism is as old as communism itself, and has taken many forms throughout the history of capitalism. Examples of anti-communism include Jewish Bolshevism, the Red Scares, McCarthyism, and in the present, cultural Marxism.