I am reluctant to write anything here as I am not an "expert" but given the lack of response I would like to add something to encourage some conversation. Of Hitler's (& the Nazis) main political opponents, the Communist Party was the most aggressive and it's supporters were the most prepared to actively oppose the aggressive and violent National Socialist (NSDAP) supporters (i.e.Hitler's supporters). The other parties were arguably too gentile to truly match the level of violent intimidation that the Nazis and Communists were capable of. Of the two, it was the Nazis that appealed more to the conservative elite who held most of the real power in Germany before 1933. This was because they feared Communism far more than Hitler and his supporters. They also felt that they could control Hitler / NSDAP and therefore sought a partnership with them to control parliament and keep the Communists under control. Whether the Conservative elite were naive, or Hitler / Nazis were very clever (or a bit of both) it ended up that Hitler & the Nazis managed to secure sufficient authority in this agreement to sideline the old elite and very quickly gained the power necessary to determine who was breaking the law and arrest them. This is an incredibly powerful tool which they could wield against anyone offering meaningful opposition. As the Communists were the most vociferous in their attacks against the National Socialists, they were the first to feel the brunt of this new found power and those who weren't particularly big fans of the Communists weren't too bothered about this, despite it being an obvious abuse of power. Many thought the Communists were more of a threat anyway and were happy to see them being controlled. There were plenty non-Communists saying the same about the Nazis but by the time 1934 came around, they were too powerful.