Yes that's correct. Libs will defend this with, "The communists were trying to overthrow the democratic government!" But the reality is, the German government had collapsed at the end of WWI and it was an open question what they'd end up with when the dust settled. The communists wanted to set up a state where the political power of the right and the bourgeoisie would have been subordinated, and the SPD sent in the freicorps to destroy them, in order to defend a fledgling system they created where they would have "no choice" but to form a coalition with the bourgeois parties and enact austerity policies to "maintain the coalition." They set up the system where their hands would be tied, and did so while being violently hostile to the only other possible coalition partner, who could've allowed them to do something other than austerity.

This was, of course, after they spent WWI supporting the war effort and betraying the Basel manifesto and the second international, which before the war called for socialists to work against their own governments in the event of a great war. German entry into WWI was expedited by the SPD voting in favor of war credits and the declaration of war. They completely betrayed their principles and the proletariat because it would have been bad for their careers.

So I find it very appropriate that libs today project onto them and glamorize them.