If by "succeeding" you mean destroying thousands or millions of people's lives by famine, labor camps and executions, then yes, it sure has.

Everyone remembers evil Pinochet who killed some 3k out of 11 million, nobody cares about kind Hoxha who killed at least 6k (likely closer to 100k) out of 2 million, or plushy Castro (10k killed + 70k dead trying to flee out of 10 million).