"And someone who destroyed Soul Calibur to save his sister without trying to reason with a sword that cannot be reasoned with."
You seem to think these two instances are the same. We are talking about Talim who literally has not been put in that situation vs someone who has. And even then, as I said countless times above, Talim has shown that she fights when she needs to fight and even if non-canon, her endings have shown each time that her merciful nature has managed to save the world. She didn't have to kill Algol, she purified Soul Edge, etc. She has shown that she can easily get the job done without killing. She unlike Patroklos, is not impulsive and actually thinks before she acts and doesn't require outside intervention to fix up her mistakes and give her another chance to fix things.
"This is Soul Calibur not Avatar The Last Airbender. In Soul Calibur, you can't save the day without killing everyone and spend the rest of the day playing with your friends."
This is a blatant lie. If this were true, Siegfried would be dead by now. He's a clear showing that killing is not always needed to save the day. Talim's endings are also proof of this. Heck, Tira's still alive in the original timeline, yet the day is saved. In Soul Calibur, all you have to do is destroy Soul Edge. Soul Calibur if she decides to go crazy.
"In Soul Calibur, things are more dangerous, and actions have consequences."
This has nothing to do with Talim's personality. This is every fiction like this. And despite this, a pure character like Talim changes nothing.
"And your enemies won't excercise with power, they will KILL you if they get the chance."
Just because THEY will kill you =/= you HAVE to kill them. Once again, this is shown multiple times. Talim has fought people who have wanted to kill her, yet never killed a soul (arguably considering the shit these guys do). She however has shown multiple times that not only is she strong enough to fight and defeat some of the verses strongest foes, but she has shown that she can easily do what needs to be done without killing the foe.
Either way, I'm dropping this.