>But still it was defeated and no meaningful aspect of it remains except for memes
You're wrong, but also underestimating the power of memes. Remember how I said Nazism is central to the foundation myth of our time? Well, the entire series of memes that comprise the American identity today stems from our victory in World War II. Our whole political and moral dialectic, and now dwindling reputation as a predominant military and cultural superpower are because we were instrumental in in the defeat of the allegedly most uniquely evil and dangerous ideology to ever exist. So supremely malevolent and deadly in fact, that despite having been engaged in covert and overt warfare against the entire Middle East for at least the past 3 decades, our government officially considers white nationalism the greatest terrorist threat to the United States. To say that there is no meaningful remnant of National Socialism today is to say that nothing meaningful remains of the Devil because there are so many Christians.
Also, just off the top of my head in terms of tangible real world achievement: National Socialism is directly responsible for the US space program, Volkswagen. Fanta, and most of the worker-friendly policies and social safety net programs that "socialists" praise and envy in countries like Sweden.
