>>509314275 (OP)Not sure exactly what you’re asking? Are you asking why the Germans let him take power even though most were not Nazis and didn’t support him?
Most people are NPC’s that just go with whatever is happening.
So even though only a minority of Germans were Nazis, having a sizable minority that is ideologically committed is going to win over a bunch of people who are basically neutral and uncommitted and willing to just go along with whatever as long as they can still eat and work.
Most Americans did not support he American Revolution but once they won the same people who had been nominally loyalist to the British government but not ideologically committed enough to fight or flee to Canada just became loyal to the new American government because that’s what was happening now.
Once the Nazis won most people became Nazis because that’s what was happening. Most people would have become communists if the KPD had won.