Harris was a butcher who knew what he was doing in laying waste to German cities, broad brushing it and white washing it doesn't make it better. He was required to do this by Govt and if it wasn't him it would have been someone else. Pretending that there was a "moral" aspect to war if laughable, there wasn't, it was kill more of them than they kill of you.
In today's climate he gets judged but he didn't live in todays climate. He is dead and likely already received his judgement.
Today a person with an artistic flair who rebuilt his country, massively improved public infrastructure and made trains run on time and created thousands of jobs would be lauded by some as a hero.
Additionally an ex cleric student who turned against religion, rebuilt his country while removing the paratical capitalists such that everybody was equal would also be lauded with statues in his honour and Liberal universities would be citing how the world should follow them.
Of course when you mention character one is Adolf Hitler and two is Josef Stalin it may change some viewpoints but others would just claim they were misunderstood.