The assumption that both sides have equal conditions apart from their economic political ideology is clearly not met. There are the difference in geographical factors, amount of fertile land, free stuff from global empires, favoritism from debt-trapping Bretton Wood institutions, terrorist attacks from the Western European diaspora, infrastructures, and fear that hard working innovative scary red Communists gain approval from the invisible hand to takeover Capitalist countries.
The assumption that both sides have equal conditions apart from their economic political ideology is clearly not met. There are the difference in geographical factors, amount of fertile land, free stuff from global empires, favoritism from debt-trapping Bretton Wood institutions, terrorist attacks from the Western European diaspora, infrastructures, and fear that hard working innovative scary red Communists gain approval from the invisible hand to takeover Capitalist countries.
Also DPRK being under hot and cold siege from the largest economic and military power since day one.