A king has absolute power over a peasant too. Doesn't stop anything.That said, it doesn't matter if it's just or not, because Ainz has ABSOLUTE POWER.
It is just.Massacring hundreds of thousands of people is not just in their world either.
They are at war. Properly declared, properly accepted.
Ainz is acting for the benefit of Nazarik, being a tyrant doesn't benefit him at all.Suddenly declaring independence which results in a war is not a passive or defensive action. They were the ones demanding stuff from the Kingdom, not the other way around.
The declaration was backed by the Empire. That's the backup he needs to not make him look like a random upstart.
Ya, he realized it so well, that he was trying to scheme against Ainz in an instant.By killing, say, a few hundred of them using the twins like they did with the Empire? Pretty sure the emperor realized Ainz's power with that stunt. In fact, why didn't they just do that with the kingdom too?
And what will *that* do?Actually, what's the point of spreading his name if he can just fly to the next country again and drop a dragon on them too?