The whole of National Socialism is based on Marx.

Actually a misleading paraphrase of a comment attributed to him by Hermann Rauschning in Hitler Speaks (see the Disputed section); even if the quote is accurate, it only talks about being inspired by methods used by Marxists like "mass demonstrations", not Marxist theories or aims. From pp. 186-187

"I have learned a great deal from Marxism, as I do not hesitate to admit," Hitler went on. "I don't mean their tiresome social doctrine or the materialist conception of history, or their absurd 'marginal utility' theories and so on. But I have learned from their methods. The difference between them and myself is that I have really put into practice what these peddlers and pen-pushers have timidly begun. The whole of National Socialism is based on it. Look at the workers' sports clubs, the industrial cells, the mass demonstrations, the propaganda leaflets written specially for the comprehension of the masses; all these new methods of political struggle are essentially Marxist in origin. All I had to do was to take over these methods and adapt them to our purpose. I had only to develop logically what Social Democracy repeatedly failed in because of its attempt to realize its evolution within the framework of democracy. National Socialism is what Marxism might have been if it could have broken its absurd and artificial ties with a democratic order. ... What remains is a revolutionary creative will that needs no ideological crutches, but grows into a ruthless instrument of might invincible in both the nation and the world. A doctrine of redemption based on science thus becomes a genuine revolutionary movement possessing all the requisites of power. ... It has no fixed aim."