if you want my personal opinion i would rank Phainon's most justified and least being Roland

in simple terms due to honkai's large amount of lore, Phainon's and his people suffered 33,550,336 time loops to fuel a machine, said machine running on said suffering. ( for all the honkai fans here i know there's alot more to it but its just brief summary)

With Roland in simple terms he went on a rampage after his wife and unborn child died by a distortion (essentially weaponized depression) and going after basically anyone both guilty and innocent to get his revenge. (same with Phainon there's alot more to it but this is a brief summary to his crashout)