She's been spit on, threatened, attacked, and come closer to death because of humans' hate toward the Faunus than for any other reason, so there's no love lost between her and most of the rest of the world.

The White Fang had always repaid their hate in turn, with greater visibility and willingness to take lives as well as destroy property as the leadership passed from her father to Sienna to Adam, but there are no innocents in the White Fang.

She doesn't know why she believes Ruby when she says things can be better, or why she curls into Yang like there's always been a place for her, but there's something in the two sisters that makes her believe that maybe she's been too simple in thinking there's only two sides, both bad.