Like I said, I wasn't sure if that was the sort of thing you were getting at. I only posted them, in response to your "why worry?", as an illustration that the dream for these people is not dead. Just as with the flat-Earthers and Geocentrists, we can see how out-of-step they are with reality and have a laugh at their delusions if that is what we wish. However, the Neo-Nazi movement and others of that ilk, rather like the creationist lobby, are seeking political power and could conceivably be in danger of achieving it if society ignores them. Remember, "All that is necessary for the triumph of evil is that good men do nothing."
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'