Which directly reflects the quality of the wine drinking public. I like the French approach better: educate your customers' tastes. In Russia they also drink sweet wines because most people there view wine as a juice that one puts in their vodka. The rich substitute the wine with very expensive champagne.
Russia and Balkans and the austro-hungarian region preferring sweeter wines is a centuries old culture and a wine making tradition. The same goes for Georgian wines.
The Russian preference for sweet wine might be due to Stalin, actually:
> The production of Soviet champagne prioritized quantity over quality. Grape growers uprooted acres of indigenous vines from Moldova to Tajikistan and replaced them with durable, high-yield varieties that catered to Stalin’s sweet tooth.
> The result was Sovetskoye Shampanskoye, a cheap, syrup-sweet sparkling wine for the ordinary Soviet worker.