He arguably was responsible for more Russian deaths than Hitler, and ruled for twice as long. And I have a lot of problems with your interpretation of how WWII unfolded, but even beyond that. With regard to American deaths. What about the Korean War? Stalin hand-picked and installed Kim Il-Sung in North Korea himself!
And that’s just ONE, hot, “Cold” War related conflict of many.
Lol.
In South Korea, American government installed Syngman Rhee, the most notorious, corrupted dictator in Korea history.
Compared to Syngman Rhee, Kim Il Sung was a great man.