@aljhay120815 exactly, she is physically strong, but through the machinations of her siblings, she has been put under them, thus making her "weaker than them". Thats the problem with the philosophy, while one character may be physically strong, they can be taken down with underhanded tactics, the focal point of the argument is being put in a position of submission, being put into a position of submission to them makes you "weaker" than them, regardless of how you got there, whether by underhanded combat tactics, clever diplomacy, or straight up lies and deception.