First, think about the difference between totalitarianism and democratic republicanism, then ask why a militaristic totalitarian leader may have been contemptuous of an “open” system.
Transference or projection of their own insecurities. It was actually the Nazis who were least secure when it came to the idea of fully mobilizing their economy for war.
“Wollt Ihr den totalen Krieg?” was asked publicly and given a resounding “Ja!” in Germany on 18 February 1943. But this was over three years too late given the economic mismatch that the Germans were confronted with. See The Wages of Destruction by Adam Tooze.