In my 10-part blog series on the New Deal and World War II, I have shown how New Deal programs & policies were instrumental to the building of the atomic bomb, to the creation of strong air and naval defenses, to the quick mobilization of our soldiers, and much more. The lessons from history could not be more clear. When a strong democracy (which we don't have now) heavily invests in its people and its infrastructure (which we don't do now), great and significant things can happen, for example, better preparedness for struggles and tragedies.
World War II was a hideous waste of life and should never have happened. But it did happen and the New Deal helped us get through it.