"Progressives should not make the same mistake that Ernst Thälmann made in 1932. The leader of the German Communist Party, Thälmann saw mainstream liberals as his enemies, and so the center and left never joined forces against the Nazis. Thälmann famously said that ‘some Nazi trees must not be allowed to overshadow a forest’ of social democrats, whom he sneeringly called ‘social fascists.’
After Adolf Hitler gained power in 1933, Thälmann was arrested. He was shot on Hitler’s orders in Buchenwald concentration camp in 1944."
So, first, the way you copy+paste that response is difficult to follow, counterintuitive, and unnecessary.
Second, yes the KPD were often in violent conflict with the centrist parties. Violence had been reciprocal, unfortunately. And I’m not sure why Marx (a centrist) aligning with the DNVP years before undermines the broader point that it wasn’t Marx who elevated Hitler to the chancellorship. Sometimes US Democrats have negotiated with Republicans, but that doesn’t mean they’re responsible for everything Republicans have done or will do.
In this case, Thälmann and the BVP share the blame for not seeing Hitler and the conservatives as a bigger, more existential threat. Whatever threat Thälmann perceived from the SPD, BVP, and Marx’s former allies (the DNVP), they obviously dwarfed in comparison to the threat of the Nazis. Not saying their fears were unjustified, mind you, only that they obviously chose wrong by not looking at the bigger picture. Maybe they thought they were doing the right thing in holding true to their principles and not joining forces with the SPD and BVP, but it’s obvious now that they should have taken strategic influence more seriously, for all of their sakes.
Edit: Looks like the .ml brigade showed up in force today.