Well, I don’t really criticize them like that anymore because it’s old school, But I can have a couple of reasons
1. They Make memes of committing war crimes, especially ones that are similar to the holucaust
2. They wear gas masks and are absolutely obsessed chemical warfare
2. The color patterns of their flag and the way they use it (Like putting it on Banners and Peaked Caps/Barrets)
3. They have this way of wanting to maintain order and justice in a Dunning-Kruger effect way, just like (you know who)
4. There main tactics involves fear appealing and terrorism
And the last but not least obvious answer, There group specializes in exterminating a entire group of people in order in upholding their “superior race”
But that’s just dumb talk isn’t it lol, Everyone is the hero in their story….