>ignores the Holodomor
>ignores Katyn massacre
>ignores the Central Asian deportations that took place during Stalin's regime
>ignores the NKVD system of prisons
>ignores the deportation of ethnic Germans from the easternmost part of Germany and the forced resettlement of Poles from former eastern Poland (now Ukraine/Belarus) to former east Germany (now western Poland)
>ignores all suppression of non-communist, communist-but-not-Stalinist, Maoist, social democrat, etc. dissent in the USSR
>ignores events like the Soviet suppression of the Prague Spring and the Hungarian Uprising of 1956
>ignores Soviet support of socialist totalitarian dictatorships in third world countries like Afghanistan, Angola, Cuba, and paramilitary groups like Colombia's FARC (which no less morally reprehensible than what America did by supporting Sandinistas, Chilean dictator Augusto Pinochet, and Afghan mujahideen, if you think about it for a moment)