Of course all sin.
But come on, mass murderers?
It’s reLly a straw man argument.
Frankly, there is serious sinfulness both in scale and scope.
Really, yes, I need to pull out the Hitler reference. Does God really have grace to ignore all that behavior? Well, yes He does, but need He ignore it and let it slide because of grace?
I think one can only push God so far.
OTOH I would be very careful if I were to have the audacity to believe what I might think places any limit on His Grace. Personally I would think we all could rest easier knowing Hitler was in Heaven.