Why isn't the CDU / FDP / AFD a viable coalition government in Germany (2021)?
Why aren't these parties considered a possibility to form a coalition government after the 2021 elections? They all represent the right-wing in Germany, and they have enough seats for a majority if they were combined.
It seems to me like they have more in common with each other than coalitions involving SPD and the CDU.
The AfD is the Alternative for Deutschland (Germany).
The FDP is the Free Democratic Party of Germany.
The SPD is the Social Democratic Party of Germany.
The CDU is the Christian Democratic Union of Germany.