"Nazism" was never truly defeated simply because an idea cannot be wiped clean from collective memory. You can only try and keep it from spreading. Why is there so much dread afoot when it comes to national socialism?
When man comes into struggle with the laws of nature he harms himself. What's worse, he may even harm his progeny. We owe our thinking, skill and capabilities to our racial heritage. The only way to better mankind's condition is to improve the average racial properties. Not handouts. Not misguided compassion. Not self-hatred. The truth will set you free no matter how much it hurts at first.