No amount of cut internal monologue is going to justify Ainz
- beyond overkill punishments to Foresight because they unintentionally insulted his fellow LARPING nerds (and sparing one of them to keep as an underage sex slave in web version)
- his casual disregard to the fucked up shit guys like Demiurge or the roach dude do to humans in his dungeon
- declaring a one-sided war on an entire nation that wanted to surrender just for the chance of setting an example on the rest of the world not to challenge him.
Could go on. Fuck this edgy Isekai nerd.
I never said it would justify ainz? But when it comes to establishing who he is/his character it is important. A big part of the novels is ainz coming to view himself as someone other then suzuki satrou, by book ten he concludes he's an undead with the memories of a human man due to how different his perspective on reality is. This is 100% missing from the anime iirc. Similarly ainz reasoning/thought processes are glossed over, which often shine a light on his personality/how he thinks.
Eh they were never leaving the tomb, nobody that entered the tomb was ever going to see the sun again, even in the webnovel version of things nobody left that tomb. If they hadn't pissed off ainz they'd still have been slaughtered. Maybe slightly less torture? Probably not though considering ainz was already interested in testing memory magic. The insults pissed ainz off but it's not like they really changed anything that was going to happen. He was going to fight them, toy with the priest memories and kill them. That was always the plan.
TBF ainz does still think there might be some cabal of players out there somewhere but the whole message bit was mostly to convince people to join rather then fight. That they could and would crush their enemies like ants. They turned the kingdoms capital into a monument to their destruction. Marquis raven asked for it even because he didn't want his great grandchildren to forget/foolishly rise up against ainz because they forgot the horror the undead could bring to bear. Definitely unnecessary but it's not like ainz is trying to stop threats from rising up, he just doesn't want to deal with the annoyance of uprisings.
Climbs torture actually had little to nothing to do with ainz, or anyone from nazarick. To them climb was just a point of control to buy renner. Breaking/destroying him was all renners planning and doing (Her dream was to chain him up like a dog, hardly surprising she'd do what she could to break him). Ainz was just a set piece that showed up because she'd sold her soul to them and he figured (I already got the armor, might as well grab that cool sword). The author bit, yeah climbs basically the classical Shonen protag except the girl he wants to protect is a twisted monster and he's in a world where growing stronger is a matter of luck and genetics rather then hard work.
Climbs failures have nothing to do with him being lazy/not working hard enough, he was just born with a low level cap. He lost the genetic lottery and thus could never amount to anything regardless of how hard he worked. He worked until his bones broke and his flesh bled but it just didn't matter
I mean as I said to each their own, ainz isn't an easy character to like, heck overlord in general isn't for alot of people. It's grim dark, over the top, edgy and incredibly nihilistic/pessimistic.
To be fair ainz hasn't quite reached stalin levels yet! He's only in the eight million ball park at this point. Next book though probably gonna reach those numbers considering what he learned about the theocracy and how pissed he was. They're probably going to be wiped off the map. And I suppose the camps might make up the difference even if they weren't really about killing people.