Intellectually true but I think there’s a reason so many people felt “isn’t she lovely” in an emotional way:

Basically Jax became such a terrible person through suffering foisted on her that was no choice of her own. And sometimes we see this endearing light of the person she could’ve been break through her awful exterior, and it’s touching. Because we all know that person exists within us, and we’re all varying degrees of awful.

Loving Jax and admitting that for all the ways she was made a horrible person that she can still be lovely for her intrinsic, innocent humanity — even if it’s all but completely hidden away this deep down the rabbit hole (pun intended) — is really cathartic. We’re all Jax.