I am french and my great grandfather served in WWI as an aide-de-camp to a general and I used to talk to him on our long walks when I was 8-9 and he was 87-88. I have a rather unique perspective on the war. He also showed me the road where Stukas gunned down fleeing Parisians in 1940. He showed me the trenches and the woods where people would run to and hide. We used to walk around in those woods. It's near Nemours, in Seine-et-Marne. His son (my grandfather) was the commander of a tank unit in 1940. He was captured and sent to a work camp in Germany, near Baden-Baden. He returned in 1942, to work the more fertile french farm. My mother was born in '43. There were two SS officers quartered at the house, in the upstairs bedroom. I slept in the same beds when I stayed with them. The more senior of the SS officers, according to my great grandmother, made sure that my mother had eggs and milk in the first year of her life. They left in June of 44 and she did not hear of them again. She told me the younger one came home crying one evening. She asked him what had happened. They were sitting on the stone doorsteps, side by side, just as she and I were when she told me the story 35 years later. He said, through sobs, that US bombers had bombed his town and killed his entire family. His parents, grandparents, sister, and much younger brother. Last but not least, my great grandfather told me that in July of 44, an american bomb exploded near our house, in the rear field, and a shapnel fragment broke a hole in the back courtyard door, raced across the yard, barely missing my mother's head by 20cm, then crashed into the water cistern. He then walked over and ran his finger over the discolored patch. He said: "This is where the hole was."

All this to say that while I have read the history books, some in French and never translated into English (apparently some french material isn't suitable for a British audience's taste and sensibilities), I also have some more intimate knowledge that transcends the written page and the maps with arrows and dashed lines.

Note that I don't disagree with you, and as you point out, it was partly new technology that won the war for the allies.