Marx’s error, Hitler believed, had been to foster class war instead of national unity – to set workers against industrialists instead of conscripting both groups into a corporatist order. His aim, he told his economic adviser, Otto Wagener, was to “convert the German Volk to socialism without simply killing off the old individualists” – by which he meant the bankers and factory owners who could, he thought, serve socialism better by generating revenue for the state. “What Marxism, Leninism and Stalinism failed to accomplish,” he told Wagener, “we shall be in a position to achieve.”...In fact, authoritarianism was the common feature of socialists of both National and Leninist varieties, who rushed to stick each other in prison camps or before firing squads. Each faction loathed the other as heretical, but both scorned free-market individualists as beyond redemption. Their battle was all the fiercer, as Hayek pointed out in 1944, because it was a battle between brothers.Authoritarianism – or, to give it a less loaded name, the belief that state compulsion is justified in pursuit of a higher goal, such as scientific progress or greater equality – was traditionally a characteristic of the social democrats as much as of the revolutionaries.
This is from UK journalist, author and politician Daniel Hannan at The Telegraph (hat tip Lew Rockwell)