>>64210574
>one would think they were smart enough to commit the ever increasingly limited resources to stuff that would actually make them win the war
That's the problem. The allies had a shit ton of resources and the Germans had an increasingly limited amount of resources. Once America entered the war and the Soviet Union failed to collapse decisively like France did, there wasn't really a mathematical route to win the ensuing war of attrition. You could try building sensible shit, but the allies will just build vastly more sensible shit that was (more or less) qualitatively equivalent. So you either bet the farm on wunderwaffe turning things around, or accept that defeat is inevitable and surrender.

Probably a stupid bet for Germany on the whole, but not a terrible cynical bet to make if you're the big name Nazi leaders. They kind of put themselves in an awkward position of committing a bit too many perfidious sneak attacks and happy happy fun time atrocities. The allies were gonna want to execute a lot of the very very top ranking leaders on principle. Hence them approving the construction of all the HabensWerferGeschutzenNeuntausends. Probably won't work, but maybe it will.