national socialistsm directly lead to the deaths - and systematic extermination of - at least 20 million people, if not 30+ million, in the span of five years. communism has a comparable death toll, but that's not from targeted extermination. just sheer incompetence. besides, the death toll for communist purges, like stalin's or mao's, is in the thousands. not the millions or tens of millions.
both are cancerous ideologies, but national socialistsm is undeniably the worse of the two.