Firstly, Morgantau was FDR's Treasury Secretary and Scott Baio, well, wasn't. But wait, there's more - of course if FDR had done "nothing" the depression would have ended before it ever got going:
https://mises.org/library/forgotten-depression-1920
And as for WWII "ending the Great Depression," well, LOL! Certainly if you have a bad employment deficit, killing off a half million young men (and women) would "help." But beyond that, the idea that WWII "ended" the Great Depression is absurd:
https://www.forbes.com/sites/peterferrara/2013/11/30/the-great-depression-was-ended-by-the-end-of-world-war-ii-not-the-start-of-it/
https://mises.org/library/world-war-ii-did-not-end-great-depression
https://www.jstor.org/stable/pdf/24563084.pdf?seq=1#page_scan_tab_contents
https://eh.net/encyclopedia/the-american-economy-during-world-war-ii/
https://www.corbettreport.com/no-wwii-did-not-end-the-great-depression/
And LOL, YOUR final link actually destroys your "point:"
On the surface, World War II seems to mark the end of the Great Depression. During the war more than 12 million Americans were sent into the military, and a similar number toiled in defense-related jobs. Those war jobs seemingly took care of the 17 million unemployed in 1939. Most historians have therefore cited the massive spending during wartime as the event that ended the Great Depression.
Some economists—especially Robert Higgs (seehttp://www.independent.org/store/book.asp?id=65) -- have wisely challenged that conclusion. Let’s be blunt. If the recipe for economic recovery is putting tens of millions of people in defense plants or military marches, then having them make or drop bombs on our enemies overseas, the value of world peace is called into question. In truth, building tanks and feeding soldiers—necessary as it was to winning the war—became a crushing financial burden. We merely traded debt for unemployment. The expense of funding World War II hiked the national debt from $49 billion in 1941 to almost $260 billion in 1945. In other words, the war had only postponed the issue of recovery.
https://fee.org/articles/37-if-fdrs-new-deal-didnt-end-the-depression-then-it-was-world-war-ii-that-did/
That there is some delicious irony, am I right?
War is the ultimate Broken Window Fallacy:
https://www.logicallyfallacious.com/tools/lp/Bo/LogicalFallacies/63/Broken-Window-Fallacy
http://bastiat.org/en/twisatwins.html
As I have always said (and you once again prove correct here), war is the last refuge of failed Keynesians...