Keynes said it best: better even a bad government than a bomber overhead.
The problem the WAllies had was, they were targetting the wrong morale. The issue was, was Hitler going to quit? Could the Nazis be induced to surrender? To achieve that, the WAllies had to take a different approach, one that, in effect, said, "Overthrow the Nazis, & we stop."
The interesting aspect here is that a bunch of German generals seem to have understood exactly that message. A misunderstanding on their part?