The legal adage is that "hard cases make bad law", and you've deliberately raised the hardest of all cases (Stalin, Mao, etc.). You seek thereby to overturn the law of faith as the sole requisite for salvation. That is the Jews' stumbling block that Paul debunked with finality in Romans, which I heartily commend to you.
You’re a patient guy, Hebrews.
No, qualitative as well... same argument. And same irreconcilable difference in theology.