Capitalism means that economic transactions between parties are voluntary on both sides. All transactions that involve the state necessarily include the threat of force. The Nazi government was the same. The gun is pointed at you to force you to pay taxes. If you don't pay then you go to prison or in the ground. The last graphic where everyone is armed is more descriptive of libertarianism. A totalitarian state like the Nazis is when the state has guns and the populace doesn't. That's how they maintain totalitarianism. The power stays centralized. At the same time the Nazis ended their central bank, so that made them more capitalistic than we are now. Central banks are the end of a functioning free market.