You do prove the extreme polarized politics. For you it is AfD vs others.

In reality it is not. It is a spectrum of parties. People vote often for smaller parties in the state and larger ones in the national.

Does the existence of an alt-right WannaBeNazi party in modern Germany preclude the existance of a spectrum of views within Germany and usher in an inability of a majority of Germans to express themselves with nuance though?

By all means make a considered and thoughtful point, please.