The German historian Eberhard Jäckel wrote an excellent book on Hitler's plans called Hitler's World View: A Blueprint for Power. He explained why Hitler felt it necessary to extinguish the Jews. Whereas Marx viewed history as class struggle, Hitler instead viewed history as racial struggle. Jäckel elaborates:

It is on this basis that the programmatic thinker Hitler confirms and defines for the political Hitler the dual, yet also unified, task of his life. He had to annihilate the Jews, thus restoring the meaning of history, and within the thus restored, nature-intended struggle for existence, he at the same time had to conquer new living space for the German people. Each of these tasks was inextricably linked to the other; indeed, they were the mutually necessary preconditions for each other. Unless the Jews were annihilated there would very soon no longer be any struggle for living space, nor therefore any culture, and consequently nations would die out; not just the German nation, but ultimately all nations. But if, on the other hand, the German people failed to conquer new living space, it would die out because of that and the Jews would triumph.