Re: "hysterical shit about Prince Harry "dressing as a Nazi","
Hitler took extreme precautions against either a coup or assassination
And (apparently) couldn't understand whay the British were fighting against him since (in his perverted ideology) that were fellow Germanics and thus of the "master race".
people like Canaris who were working against him
There were also quite a few Germans that ended up dead in concentration camps because they disagreed with the Nazi ideology. Hitler came about (in large part) because of the French demands as part of the treaty that ended WW1 and bankrupted Germany. Even the politicians at the time realised this and cautioned against some of the provisions.