Ronova has to have the most justified crashout ever. Imagine trying to save humanity from getting themselves killed by the Ruler of Teyvat and they decide to kill you after you've spared them multiple times and warned them to stop.
Serve your creator for millennia, and in your efforts to uphold the very rules they tasked to you, they take your Authority from you in middle of being killed by the people she's protecting you from.
Not even moments after they just called you a worthless tool, your creator treats you like some random stranger and strips you of everything you were for nearly your whole life like you don't even matter, and leaves you to die.
Everyone hates you because of what your creator has forced you to do, but nobody appreciates you when you DO help because you didn't do "enough" even though you're freedom is heavily restricted.
MT shows you how easily you can slip back into your old habits and self-destructive coping mechanisms despite how hard you’ve tried to change and improve yourself, but all these people care about is virtue signaling when the series clearly portrays these actions as bad things.