I understand your points, but he also caused the deaths of countless millions (the empire were excellent at destroying records) of Indians in the Bengal region, prepartition era.

He was despised by most of parliament for his loutish behaviour, and would have never made it to Prime Minister, except that no one else wanted the job. He was the wrong man in the right place.
I never postulated that he is blacker than black. I believe he was just like Hitler, a human who thought he was doing right, but being a white-supremacist, a good guy for his in-group, and a bad guy for the out-group.