Remember, when the Nazi's were actually running in elections prior to taking power they had an issue agenda, they weren't running on kill all the jews and start by far the biggest and bloodiest war in the history of the planet. Those were results of the Nazi's getting power, advocacy for those policies was not how they attained power. Which is why people in a country like Germany are so scared shitless of AFD, they've experienced the results first hand.
The official AFD political program is similar to the Hitler Nazi political program. Hence, the "neo-Nazi" tag.