From the moment White Lily Cookie said she wanted to live with herself intact, I knew she'd do it, and I knew nothing- not death itself, not any trial, not the person she loves most- would stop her, because White Lily Cookie is perhaps the one character in this game I think could do truly anything she desired to. Her mind is so sharp, her heart is so bountiful, and her will is so strong. To me, White Lily Cookie might be the unstoppable object of this game.
Which isn't always a good thing, we've seen the nightmares her resolution have caused in the past. She is the reason for the destruction of The Blueberry Academy, she is the reason for Dark Enchantress Cookie, and Dark Enchantress Cookie inherited that immovable determination from her, using it for the worst acts imaginable. If she had been allowed to keep her memories, after The Blueberry Academy, she would have come back with better calculations, better handiwork, and stronger resolution, and it would have ended it catastrophy all the same. She says as much.
Beyond the more obvious damages she's caused, White Lily Cookie has also hurt her friends immensely on an interpersonal level. She self isolates, she cuts other people out, she will listen to nobody, when she has her mind set on something.
There is much focus on the fact that Pure Vanilla Cookie did not understand her, and on the fact that he could be so stifling with her, and those are things she has a right to feel frustration for, but in the same way, she did not speak to him, and made him watch her get hurt, or hurt others, time and time again, 'always walking forward'.
In the same way she would not listen to Elder Faerie Cookie's pleas before the banquet. In the same way she makes up her mind on her own to die and leaves Golden Cheese Cookie with only a note and no real closure or chance to forgive her.
But despite the damage done, I find it admirable. As much bad as she has done, White Lily Cookie has done so much good, and as she pushes forward, she learns. It is not blind stubbornness alone, at least not anymore. White Lily Cookie has become wiser, aware of the harm she has caused and could cause still, and she has taken on that heavy burden while still walking forward as resolutely as she ever has, despite being given an opportunity for peace eternal that I do not think anyone would fault her for taking.
And I think the thing that's most beautiful and admirable about her strength to me is that White Lily Cookie is so fragile. She's constantly aware, of the limitations of her own body, of how easily her life could end, of how little she'll likely get to do, of how much suffering may await her. She's constantly, within her own mind, faltering and afraid, thinking herself weak, incapable. Yet her fear does not paralyze her. She is afraid, but her willpower and passion drives her to do it scared, every time. Because White Lily Cookie is brave.