The night of the long knives occurred because Göring negotiated a deal with the industrialists to support Hitler in exchange for getting rid of the Socialist Strasserites (a side benefit was that the homosexuals were liquidated as well).
Hitler himself vacillated over killing Röhm and had to be talked into it.
What we are seeing in the Democrat party is that the Strasserites are trying to take out the folks that sold out to the industrialists (tech billionaires in the modern case).
The Nazi Revolt most never heard of
The Stennes Revolt (1931)
https://en.wikipedia.org/wiki/Stennes_revolt
Members of the SA led by Berlin chief Walter Stennes, dissatisfied with the role and restrictions placed on them by Adolf Hitler, began to rebel against the Nazi Party leadership. Stennes issued a number of demands regarding the status of the SA and Nazi Party policy which were rejected by Hitler. Stennes ransacked the offices of the Berlin Gau twice as a show of force, which led to him and his supporters being expelled from the SA and the Nazi Party.
The Stennes revolt led to a temporary resumption of control of the SA by the Nazi Party leadership, and Hitler’s appointment of Ernst Röhm as SA Chief. Many of the issues within the SA that provoked the revolt were not resolved and contributed to the Night of the Long Knives in 1934. The revolt was one of the first major actions of the Schutzstaffel which earned them the confidence of Hitler. There is some evidence suggesting that Stennes was paid by the government of Chancellor Heinrich Brüning, with the intention of causing conflict within and destabilizing the Nazi movement.