The AfD have not violated anyones rights. They have a massive following who vote for them, which is growing larger and larger by the day. Banning them from elections is anti-democratic when they haven't done anything to harm anyones rights, nor do any of their policies actually harm anyones "rights".
What policies of theirs do you believe would violate the rights of others?
All that and still didn't answer a simple question:
Which policies are "nazi" policies exactly?
Also worth pointing out, since you clearly don't remember - the Nazi's were far left socialists. They weren't far right.