The root problem here - Munchausen syndrome by proxy

From World Net Daily:

Gag order in case of 7-year-old 'transgender' triggers alarm
A family advocate is protesting gag orders by judges in family disputes, citing the Texas case in which a father challenged his ex-wife's forced gender "transition" of their 7-year-old boy.

Judge Kim Cooks imposed a gag order on Jeffrey Younger and Anne Georgulas after ruling "joint conservatorship" of their son, James.

The Mom:

James Younger's mother had been making him wear dresses, paint his nails and telling him he's a girl since he was 3 years old.

She's also been taking him to a "gender clinic."

Her plans for the boy, whom she calls Luna, include drugs and even surgery.

I have not seen it mentioned  but this sounds like a classic case of Munchausen syndrome by proxy

Munchausen syndrome by proxy (MSbP or MbP) is a behaviour pattern in which a caregiver fabricates, exaggerates, or induces mental or physical health problems in those who are in their care, usually to gain attention or sympathy from others. With deception at its core, this behaviour is an elusive, potentially lethal, and frequently misunderstood form of child abuse or medical neglect that has been difficult to define, detect, and confirm.

Signs and symptoms
In Munchausen syndrome by proxy, an adult caregiver makes a child appear mentally or physically ill or impaired by either fabricating symptoms or actually causing harm to the child, in order to gain the attention of medical providers and others. In order to perpetuate the medical relationship, the caregiver systematically misrepresents symptoms, fabricates signs, manipulates laboratory tests, or even purposely harms the child (e.g. by poisoning, suffocation, infection, physical injury). Studies have shown a mortality rate of between 6% and 10% of MSbP victims, making it perhaps the most lethal form of abuse.

A review found the average age of the person affected at diagnosis was 4 years; slightly over half of were aged 24 months or younger, and 75% were under six years old. The average duration from onset of symptoms to diagnosis was 22 months.

That sure seems to fit the story. The problem is not the child or father, it is the mentally ill mother.