since just about everyone, (including Hitler I suppose) who dies before
Armageddon gets a free pass to the safe and secure new system
But don't you think what so horrible about Hitler (and others like him) is that he ended so many people's lives prematurely? As an atheist, that's the horror of it to me. He had some 'ideas' and therefore ended the one and only life that those millions of people will ever have.
If there is an eternal afterlife whether in a paradise earth or in heaven with God or something else, then anything bad that may have happened on this brief blip of time here on Earth is irrelevant and therefore loses any impact compared to the millions, trillions, quadrillions of years ahead.
If this life is just a layover on the way to an eternity of eternal bliss then why does it really matter if Hitler was a naughty boy?