"At the end of the war German industrial output was still rising"
How on earth can you claim that? At the end of the war Germany was smashed.. Its industrial output was minimal - thats why we were able to beat them. They rebuilt quickly after the war, mainly due to the investments of Marshall plan
As for the rest of your diatribe, its full of rubbish
They bombed what they could using the technology available. With a very few exceptions of the Ruhr chemical and steel plants, German manufacturing was embedded within the cities with housing filling in the gaps. Most towns and cities did not have defined industrial areas - there were no separate trade or industrial zones.
To bomb the site of production you had to bomb the whole city
Theres was no middle way - you either bombed or didn't, and you took what tragets you could
As to the question about the french phrase, read the wiki page on Admiral Byng
https://en.wikipedia.org/wiki/John_Byng
Napoleon coined the phrase when he heard of Byng's execution for the failure to defend Minorca.. Roughly translated, what he said was "The English, they execute an Admiral every now and then to encourage the others (to fight)"