I remember that we discussed this specific question at school. How dangerous it is to believe that "this can't happen here again because we all remember it and everybody is so well educated about it". That's when you start letting your guard down. That's also when people who may not identify as nazis (yet) start thinking :"Well, national socialism obviously can't happen again, therefore MY far right views can't possibly count as national socialism, therefore they're ok."

It's all bullshit. You can educate people all you want, there will always be a certain percentage of assholes and idiots and we've been far too tolerant of those for far too long.