Its because of the censorship. Imagine you're a 20 year old guy trying to go through college, and you say something about how its not fair that certain people get easier entrance to college just for their race. Or however it would be stated in German - its the same deal everywhere, the only difference is how careful you have to be. Suddenly they're basically dogpiled by people who censor them and exclude them, quite possibly being kicked out if college. Suddenly, they go from reasonable skepticism to "the afd was right!" And its deserved. Censorship is wrong.