KdF didn't have anything to do with war weariness; it was effectively ended by the onset of war, which is one of the reasons I described it as a "bad idea". It wasn't a universal failure in every possible sense, no. It succeeded very well at engendering nostalgia among the survivors of the German middle class, undoubtedly amplified by the subsequent memory of the war. But the main point was sort of "corporatism for dummies", a ham-handed effort to bridge class divides without actually addressing them in any way except for a few circuses. And this did not really succeed.
