Because the failures of the USSR occurred entirely within the USSR's borders, under its jurisdiction, and were entirely within its power to resolve. Meanwhile,

Because the failures of the USSR occurred entirely within the USSR's borders, under its jurisdiction, and were entirely within its power to resolve. Meanwhile, the 9 million deaths of starvation you cite are across multiple countries with multiple overlapping legal regimes and are multi-causal, from corruption to war and failed states like Haiti and Syria.