Remember, Lenin established the tools Stalin used. The GULAG system, the string of secret police organizations starting with the Cheka, etc...
Forced labour camps and secret police organisations were pretty ubiquitous. The Tsars had The Okhrana, forced labour camps and political repression (Lenin, Trotsky and Stalin had all been exiled to Siberia). The Checka and Gulag were the Bolshevik versions of the same thing. Russia had the White Terror... and then the Red Terror. It all fucking sucks but the point remains, Stalin took things to new levels of psychopathic insanity where we start hitting 10s of millions of excess deaths.
If you don't like Gulags, then bear in mind they were created at roughly the same time the US setup forced labour camps in Haiti that led to 1000s of deaths and extra-judicial killings. Not something Americans talk about much. Should Woodrow Wilson be compared to Stalin too?
I don't know why I keep hoping mgmt will see that one day and decide not to have pretty bad things now that some later nutjob can turn into really especially bad things. It's not much of an up-side that the people who built the tools are often consumed by them.