No 13 year old child should be encouraged or allowed to significantly (or at all) mutilate their healthy and still growing body Random. Yet you're getting so caught up in fighting for pronoun justice you're missing the point entirely.
This isn't about a load of random people of the internet saying 'she'. It's about a child that has been utterly failed by those that should be protecting her, and the public lauding them as some sort of 'right on' super supportive parents, while the parents seeking to get mental health help for their children in the same circumstances are told they're transphobes that are permanently psychologically damaging their children.
It is about lies being pedalled through the trans community and by the time these children are old enough to know who they really are, the damage already being irreversible.
It is about parents and children who want access to mental health services to help trans children come to terms with their sex being denied these services, because hormones, blockers, and surgery are the 'right' treatment (even though it denies reality, causes significant permanent health problems, and has no significant impact on the suicide rates of troubled trans youths), leaving many children with no help at all.
This entire circus is steamrolling out of control, pushed along by people like you thinking you're helping a marginalised group. You're not. Ignoring reality doesn't help anyone.
someone in the US whose daughter had a double mastectomy at 17... was very troubled, threatened suicide etc
Would the parents have let them cut off their leg if they threatened suicide because they identified as a one-legged person? Or would they have realised their child needed serious support to deal with their mental health issues? Yet wanting the removal of healthy breast tissue is considered entirely ok?
This isn't trans hatred. It's hatred of child abuse being considered commendable.