Are you actually bothered that Arty insulted the mass murderer Nolan to his conflicted and grieving ex-wife? He is also right, Nolan was too weak to understand himself before killing thousands of people. Only after destroying everything he actually cared about and starting again does he realise how badly he fucked up. Arty was clearly talking about strength of character, which Debbie has but Omni-Man is struggling to reach. Even in his second chance to make things right he strangles Mark and curses his socially prescribed weakness. Nolan is a strong viltrumite, but a weak human.

All the characters were struggling with the identity that had built up about themselves over the years, and coming to terms with who they really are now.

I don’t think that ever happened. Until this moment they always thought at least one of them was the original.

They would have tried to stop him from changing the world if they could have. He effectively decapitates any sort of resistance before it can form, then makes the world a better place, forcing them to accept his rule.

It was 100% him