Not to interfere with your argument with I Blame Communism, but that line about people on this site reading things that aren't there should apply to you as well.
The Germans would have bigger chances at preventing a WWII or at least winning a short version because they would be in a much better position, not because they are cruel ruthless tyrants.
At the end of a CP-victorious First World War, Germany would have had total control over Mitteleuropa. It is hard to say because there are different versions of the war possible, but let's just say that there was a late victory in the war (no US intervention) and that A-H and the Ottomans survive, because this thread is about the Central Powers, not just Germany. Therefore, at the end of WWI, the Central Powers would control Poland, the Baltics and the Ukraine plus the Balkans and a sizeable colonial empire in Africa. Their opponents would be the USSR and a revanchist France and Italy. Britain might or might not go radical, but it would at least favor the revanchist sentiments.
Compare this to the situation France and Britain were in after OTL WWI. They had the USSR against them as a communist threat, plus they had a rearming Germany and a potentially backstabbing Italy to worry about. Also, Britain and France had democratic governments which were wary of war.
Germany and the Central Powers, on the other hand, would have pursued some reforms, but the German Reich was unlikely to be wary of war as long as it was for a just cause. When France would start violating the Treaty of Versailles Germany would be able to intervene because while the Soviet Union was a threat to them, it was not nearly as big as a threat as it was to France and Britain who stood alone. Germany ITTL would never have been forced to go through limitations on her army and all that happened after WWI. Instead, France starts from a weakened position. Therefore, this Germany is certainly capable of fighting France, Italy, Britain and Russia at once, and winning like they did in WWI. Compare this to the Entente position at the eve of WWII: America had withdrawn into isolationism and Russia was also neutral. Germany had been relatively weak at first, but reluctance because of the wish to have an anti-Soviet buffer state had prevented them from seizing that moment. Germany would have none of that reluctance.
The thread is asking about why some sympathize with the CP not what would have happened if they won.