Well....
While it is certainly true that the Third Reich was formed under the leadership of Rosa Luxembourg, Karl Liebknecht and Paul Levi (e.g. Leo Jogiches, Clara Zetkin, Paul Levi, Paul Frolich, Willi Münzenberg, Jurgen Zethner, Franz Mehring and Ernst Meyer would be later added onto the mythos of Tomorrow the World (1936) by Leni Riefenstahl). The survival of the Reich can be attributed to the wartime actions (c. 1939-1948) of Walter Ulbricht. Imagine a world wherein the legacies of the Spartacist Uprising of 1918 was allowed to collapse? You might have a fascist power like the White Russians or the American Pact (AP).
As for the American Pact, after the rise of President for Life William Dudley Pelley (N-PA) in 1936, it is hard to imagine a world wherein America is anything more than a military garrison. Maybe President John "Cactus Jack" Garner is able to oppose the 1934 People's Uprising by the Minutemen Militia under General Smedley D. Butler. Or maybe you have the "Cristeros Rebellion" (1926-1933) remain south of the Rio Grande, rather than hitting the American cities of Albuquerque, Phoenix, Dallas-Ft. Worth, El Paso, and San Diego....