No, your link did not classify NAZIs as Left. Left and Right terms are spillovers from the French Revolution referring to the seating arrangement in the Estates General. Anyone who sat on the left generally opposed the monarchy and supported the revolution, while those on the right were supportive of the traditional institutions of the Old Regime (Monarchy). If I’m a Monarch, on the literal Right, how would I be opposed (Left) to my own monarchy, i.e. my traditional, old world ways? Traditionalists can be totalitarians. The definition isn’t exclusive to the Left. WEBSTER’S Definition of totalitarianism 1 : centralized control by an autocratic authority 2 : the political concept that the citizen should be totally subject to an absolute state authority Synonyms: absolutism, autarchy, authoritarianism, autocracy, Caesarism, czarism (also tsarism or tzarism), despotism, dictatorship, totalism, tyranny