i will personally never forgive yenpress for botching the translation because now it's impossible to find chuuya / dazai / yosano takes that do not start with "first off, mori sucks and he's a predator"
mori is the don of the port mafia and has committed several war crimes, but not those ones. yell at him and hate him for the severe psychological manipulation of yosano & for dazai joining the mafia n being his witness. you know, the things he did.
I think an important piece of context that is missing from a lot of the hot takes about Mori and Elise is, well, the legendary 1970s manga Black Jack.
(very long illustrated explanation below)
I thought about the extreme fandom wank about Mori a little more, and here is more context that might be useful for thinking about this fictional character. Don't ask me to explain why the mangaka for BSD did or didn't make any particular jokes - I can't read minds! But this might be a useful bit of background.