Naa, I think it went so bad in Germany in general they need some fresh movement. They were some scars from "brown shirts association" but personally I think that some nationalism is good for your soul. As in, take care of your citizen first, before you help others. (Make Germany Great Again :-) ) They will not be banned. I think they even succeed and make some noise and if they play it right, they might be a leading party in 5 years or so.