It's fine to just admit one of the worst people to live in the 20th century was in fact worse than Abe Lincoln. No one (except a useless tankie) would take away your leftist card. It's not exactly a high bar to be better than Stalin, and even the next Soviet dictator was able to say as much.

He's just mad because he thinks Stalin ethnically cleansed the right people

people like that are putting their lack of education on full display.