Stefan Seidler is from the SSW (South Schleswig Voters' Association), a small party representing the Danish and Frisian minorities in the northernmost federal state in Germany, Schleswig-Holstein. They are exempted from the 5% vote requirement, but rather unremarkable otherwise, politically mostly aligned with the Nordic model (free markets with welfare).
It was kinda funny when they actually got enough votes at the federal elections to get into Berlin. There were some memes about it.
There's a funny protest idea:
Everybody just dumps their trash in front of the Parliament and royal palaces, manors, etc until this is reversed.