> the real issue the Germans faced was that they had lost WWI and a bunch of foreign powers were extracting large amounts of wealth ... the problem wasn't the ideology - it was that foreigners were taking their wealth and the government failed to keep people fed, sheltered and employed.

This is pretty blatant Nazi apologist rhetoric. Many groups have been wronged by foreign and domestic powers for decades, and they did not all respond with large-scale mechanized genocide. The buildup and virulent spread of focused hate in Nazi Germany was unique and can't be explained by a simple external geo-political power struggle.