Gosh, I wonder what communism had to do with the rise of the National Socialist German Workers' Party. The Weimar Republic laid the foundations for rejection of the democratic parliament, which Hitler then took advantage of to assume uncontestable power. The major reason Germany jumped to the conservative right politically was news of the political uprisings in Soviet Russia and the splitting of left factions into small uncooperative groups.

Hitler transformed the party to be strongly anti-communist and anti-bolshevist (though mostly bolshevist was used as a dogwhistle for jewish people), but the fact remains that Nazi Germany was built on the foundations laid by communists.