Actually they did. After the defeat at Stalingrad Gobbels organized the Total War campaign in 1943. He held a big rally asking the German people if they wanted Total War. They're answer: Yes.
Not that they had a choice in their answer.
Of course that’s the kicker when we are speaking of regimes that Paul Johnson described as being run by criminals.
The situation of the German people becomes a little clearer when you hear that early applicants to the SS had to prove an act of cruelty against the German people themselves. You kept any objections to the Nazi party to yourself.