Do you believe that Eastern Europe was better under Stalin?
In order to answer your question, I present the evidence of Stalinist brutality, most of it whitewashed in the West, as recorded truthfully in this summary of the book Stalin's War of Extermination
by Joachim Hoffman. These videos are well worth your time.
Stalin's War of Extermination: Parts 1 & 2https://www.bitchute.com/video/o2lW08tYh63y/https://www.bitchute.com/video/uuPoyI9GxZoO/
I think that Leon Degrelle's perspective on what would have happened to the East is something very important, given that he knew Hitler personally and fought on the Russian Front as the leader of the Wallon SS Division. Here is a relevant quote from one of his books:
While entering Russia the Germans, who had been subjected to a really summary nαzι indoctrination, imagined that the only valuable beings of the universe were the Ayrans, who, necessarily, had to be blond giants, stocky like organ stops, whiter than tea, with blue eyes like the Tyrolian skies in August.
It was rather comical, for Hitler was not tall and had chestnut hair. Goebbels had one leg shorter than the other, he was short and dark as a prune. Zep Dietrich had the style of a stocky owner of a Marseilles bar. Bormann was twisted like a retired champion cyclist. Apart from some giants serving aperitifs on the terrace of Berchtesgaden, the big guys with bleached skin, blueberry eyes, were not abundant, as one can see, in Hitler's entourage.
One may imagine the surprise of the Germans, hurtling towards Russia, at meeting only blond men with blue eyes, exactly the types of perfect Aryans that they had been made to admire exclusively! Blond men! Blond women! And what blond women! Big farm girls, splendid, strong, with light blue eyes, more natural and healthy than anything the Hitler Jugend had gathered together. One could not imagine a race more typically Aryan if one adhered to the most sacrosanct canons of Hitlerism!
In six months the entire German army had become Russophile. They fraternised everywhere with the peasants. And with the peasant women!
Some nαzι theoreticians professed some violently anti-Slav theories. They would not have resisted ten years of Russo-Germanic cohabitation. The Russians of both sexes would have learnt German very fast. They already know it. We found German handbooks in all the schools. The link of language would have been established in Russia quicker than anywhere in Europe.
(Degrelle, Hitler For A Thousand Years, pg. 175)