Because some of the conservatives (not all of them genuinely think he was a socialist, but with each year I see more and more cons talking such shit, despite of this being completely false) love to talk about his welfare and state policy reforms, which had indeed a lot of common with a socialist system, but they will never tell you about the Nazis' purges of pretty much all then existent left-wing parties, regardless of how they have been moderate or radical (meanwhile, all other right-wing and centrist parties "somehow" managed to get away from the political repressions by merging with the Nazi party), they will never tell you about the existence of private property in Nazi Germany and how the Nazis considered the German race exceptional (no matter how people are trying to deny it, but socialism never in all of history welcomed anyone who put his nationality above everything). Oh, and is it not a coincidence that all of Hitler's allies were either monarchist or right-wing republican countries? If Hitler was so socialist, why did he support Francisco Franco in a Spanish Civil war against Spanish Socialists? If Hitler was so socialist, why did he send weapons and food to Finland (which wasn't a socialist country back then by any means) and supported them in a Winter War (1939-1940) against the USSR? If Hitler was so socialist, why did he include official support of family values in his policy program and sent homosexual people to concetration camps?
Regardless of your political position, all of you need finally stop this whole "Hitler was a socialist" circus. Why people just simply cannot start calling him an insane authoritarian maniac, who wasn't either solely a socialist or nationalist? He wasn't right-wing, he wasn't left-wing, he was a complete monster whose crimes and political ideology went beyond the political compass.
en.wikipedia.org
en.wikipedia.org
Some more historical facts anyone? Eh, I'm pretty sure you will describe those agreements as justified ;- ))