I have no direct experience of how girls treat each other.
😂😂 This has been blindingly obvious throughout your thread. Yet you persist in telling us what women/girls are, how we behave, and a bunch of other male-perspective, stereotyped misconceptions about female life.
Chiming with others - and mirroring yourself, @AlphaTransWoman - I went to a single-sex grammar school. Within school, we had stabbings (scalpels & glass), beatings and torture of the same type that happens in boys' schools.
My brother went to my school's partner establishment: the intra-pupil bullying was the same, so was the proportion of insanely vindictive teachers to kind & nurturing ones.
Girls suffered more psycho-social bullying and sexual harassment (from staff), but boys would be shamed for perceived failures in 'masculinity': a different kind of emotional abuse, but much the same in intent and effect.
And ours was the posh school! Both girls and boys were taunted, harassed and assaulted in town by students from other schools who thought we needed bringing down a peg.
I don't even know why I'm sharing this, except perhaps to highlight that you really have no fucking clue about being a girl or a woman.
And ... a woman is not a failed or faulty man. A woman is just another human, distinct from a man in physical biology only. The humanity's the same mixture of good & bad, weak & strong; the body is significantly different.
The physical differences are necessary to the propagation of our species: it's that simple and that fundamental. Kind/competitive? Rational/sentimental? False dichotomies. You've been suckered by patriarchy.