This is like the twisted opposite of Wolfram, as fucked up as that sequence of events was. You can't humanize warmongers, but you can dehumanize bastards, but not both at the same time.
@Doomer "redeeming" Mengele-tier evil monsters who absolutely should not be redeemed is a common flaw with fiction writers in general but it's especially bad in Japan. I think it's a Buddhist thing.