My Ukrainian friends would disagree. In the great famine called “The Holodomor” about 10 million Ukrainians were deliberately starved to death. All caused by an order from Stalin and carried out by Nikita Kruschev.
Kharkov is in the Ukraine.
No doubt. For Stalin they had to invent a new term: democide.
Genocide was too restrictive.
My limited understanding is that Stalin had more killed, but Hitler killed at a higher rate, but for a shorter duration. Hitler had a particular habit of attacking and invading his allies.