The Soviet Famine of the collectivization, which you inappropriately label "Holodomor" (scary word for a specific famine to make it sound like holocaust, I wonder if you have any other special scary words for other famines) is indeed an unfortunate event of Soviet History. Yet, you fail to see it in the bigger picture.

First of all, even during the famine, life expectancy remained higher than in Tsarist times, because of increasing access to healthcare and nutrition on average to peasants.

Secondly, the famine is an unfortunate consequence of the necessity of rapid collectivization and industrialization because of threat of external invasion. There was intense debate in the CPSU at the time regarding rapid collectivization and industrialization vs. progressive one, and ultimately rapid industrialization won because of the perceived threat of invasion by industrialized western powers with 100 years of industrialization behind their backs. Famously, in 1931, Stalin said in a speech that the USSR was 100 years behind and would have to make up for that difference in 10 years or they would be eliminated. Almost exactly 10 years later, Nazis invaded the Soviet Union.

By industrializing rapidly (15% yearly growth of GDP) thanks to rapid collectivization of agriculture, not only did the Soviet Union defeat Nazism and save every European nationality between Germany and the Urals from Nazi genocide (hence saving tens of millions of lives), but this rapid development managed to raise life expectancy from below 30 years old in 1929 to above 60 bu 1960, effectively saving tens of millions of lives more. By any demographic metric you use, compared to what came before (Tsarism) and what came after (capitalism), the USSR saved tens of millions of lives. Capitalism is the one that brought unemployment, hunger, drug abuse, violent crime, and a reduction of life expectancy after decades of progress.

Don't believe me? Go check the data: