Anti-German (German: Antideutsch) is the generic name applied to a variety of theoretical and political tendencies within the left mainly in Germany and Austria. The Anti-Germans form one of the main camps within the broader Antifa movement, alongside the Anti-Zionist anti-imperialists, after the two currents split between the 1990s and the early 2000s as a result of their diverging views on Israel. The anti-Germans are a fringe movement within the German left: In 2006 Deutsche Welle estimated the number of anti-Germans to be between 500 and 3,000. The basic standpoint of the anti-Germans includes opposition to German nationalism, a critique of mainstream left anti-capitalist views, which are thought to be simplistic and structurally antisemitic, and a critique of antisemitism, which is considered to be deeply rooted in German cultural history. As a result of this analysis of antisemitism, support for Israel and opposition to Anti-Zionism is a primary unifying factor of the anti-German movement. The critical theory of Theodor Adorno and Max Horkheimer is often cited by anti-German theorists.
There is a german video of somewhat left people, while I disagree with the people in some questions of practice it is about the history of the AntiDeutsche from an AntiImp perspective (didn't watch it but skimmed it, was recommended to me):
https://www.youtube.com/watch?v=TgJxr7MbF7E