ADL is not concerned with anti-semitism anymore, they'renonly concerned about silencing xriticism of Israel. This became clear when they updated their definition of anti-semitism to include anti-zionism and opposition to Israel. They have lost all credibility.
And AFD is most definitely a nazi party. Just because there are less polished nazi parties as well does not make them non-nazis. They have an ethnonationalist agenda, focusing on German ethnicity as the basis around which to build the German nation state. Contrast this with civic nationalism, the non-nazi liberal take on nation states, in which citizenship is based on a cultural identity and belonging, not your Germanic descent.