De Gaulle saw French "independence" as necessary for defending corporatist state interventionism from the dangerous free-market liberals in Brussels, whom he believed would expose France (and Europe) to the depredations of multinational businesses and international markets that would act in their own interests and not in the interests of France. "Independence" was based on the ideal of a proactive state not afraid to intervene in economic matters where it served the common interest - a "third way" between capitalism and communism.
How unlike Britain's free-market Europhobes, who would not know what to do with "independence" if they had it (if it were indeed possible in today's world). Call them "little Englanders", but not Gaullists.
Philip G Cerny