Don´t face/stop the evil makes you an accomplice of evil , Sebas and Cocytus are evil characters.
Using DnD (something that Overlord steals , like everything) will put them into ''Lawful evil'' , while most of Nazarick is chaotic evil.
Overlord cut chaotic/lawful alignment entirely, its straight good to evil line, with the rest being seemingly based on culture/personality.
Weirdly overlord lets a lot of characters that would be evil under dnd's alignment get away with not. Murder is usually an instant drop, but theres a specific beastman who's wearing infant skulls, he doesn't get the fashion or why his tribesmen like them but he skins and wears them to look good to his fellows...He is not evil under overlords internal karmic system
As for the thread being discussed I think the poster was mostly wondering if the angel group would be forced to kill literally everyone because most of them could be considered evil, and highlighting why it was an important question.
Also pretty sure aura and mare were only mentioned because under overlords internal karmic system neither of them are considered evil. So if thats the reference they'd be spared/not evil.
he ONE TIME they truly could have with a person who was able to fully reach Level 100 and even knew how to use the OP Great Magics, they literally lose due to absolute BS)
Who are you thinking of here?
Also Id say the majority of nazarick doesn't hate outsiders, they just don't give a fuck about them. We just see the most active members who generally don't like humans at all. (Most members of nazarick are perfectly happy to sit in the gorgeous tomb forever and wouldn't care if the outside world went up in nuclear fire)
Even there outside narberal gamma and albedo most of them don't really care/hate humans. Many of them actually like them. That just doesn't change the fact they'd kill them in a heartbeat if ainz gave the word.
Demiurge as fucked as he is actually really likes humans in his sick twisted fucked up way, like they're aren't particular targets of his hatred/dislike. Dudes a sadist, he loves spreading suffering in pain to most entities. Humans are sadly one of his first victims.