Yup. I have a similar argument before. If one reads more about Hitler and the Nazis, they are actually not different to any of the standard third world dictators like Idi Amin and Muammar Gaddafi. The difference is that the Nazis were only more powerful because they inherited a working institution-- especially the Prussian-based military-- while third world countries had to start from scratch after decolonisation.

The Nazis like other dictators are very inefficient. I am reading Hannah Arendt's "Eichmann in Jerusalem: A Report on the Banality of Evil". The book goes through the convoluted bureaucracy and logistics of the Holocaust. Different pen pushers and administrators arguing who should be able to use the trains for their own departmental needs. What struck me the most is that the Nazis wasted so much effort transporting so-called undesirables to concentration camps, when their own soldiers are struggling to get supplies and reinforcements to the frontlines!

More importantly, as you correctly mentioned, Nazi Germany struggled to feed their own people. As a matter of fact, there is strong evidence that Hitler started the war in Europe to stave off the looming economic crisis, which his own economic minister warned him of, thanks to endless government spending particularly with the re-armement. That economic crisis had been warded (temporarily of course) by plundering the resources of their conquered territories.