The country at large did not know he was regularly blowing his top by this time.
There were propaganda films and I have seen them. The Nazi films showed fairly reasonable conditions and even had concerts within the camps. Some say that terrible things then happened, because of the war going against Germany. Of course the idea putting people into camps was a horrible thing. Of course, the propaganda war was one which was considered essential to Britain's war effort. Orwell himself was perturbed as a part of it. He salved his conscience by saying one had to do it, to defeat Hitler.
We, in England were told that all Germans supported the war and they were going to get what they deserved. Thank God, that at the end of the war, America decreed that the guilty would be punished, the innocent to be allowed human decency.
That is another story.
There were a lot of delusions and lies going around during that era. Hitler went in for a blend of paganism which was custom crafted to bring the demons of hell to Germany. It matters less that we “punish all the guilty people” than that we remember that the grace of God was sold out for messes of pottage, and that we ourselves do it if not as severely. Witch hunts have a way of keeping the potentially penitent from actually being so.