Very, very unlikely.
People are jumping on the bandwagon. Boyish girls and girlish boys. They've always been around, everyone accepted the concept of a "tomboy", all was fine. It was often just perfectly normal insecurity or a phase they'll get through. Now they're being told they need treatment to correct their horrible abnormality.
Today's version of Diversity is intolerance. If you don't fit the mould of your gender then you have to be modified to comply with some narrow new definition of normality. It's all really damaging.
I'm sure Ivor has based his opinion on some research into the issue.
I don't think he'd give such a loaded opinion without that research.
I hope he'll allow me to help him out:
The phrase "intersex" only started to be used in the late 20'teens. (2017-2018)
But it was much earlier than that that surgery was used to correct "Genital anomalies".
"German geneticist Richard Goldschmidt coined the term "intersex" in 1917, replacing older, stigmatized terms like hermaphrodite, with
clinical "normalization" surgeries becoming standard in the 1950s. "
Many writers have looked upon instances of intersexual births as problems for the binary model that they have identified in western understanding of sex and gender. This paper challenges that interpretation of intersexuality, recognising the place of the concept in an exclusivist taxonomy...
publications.essex.ac.uk
These surgery "normalising" processes were carried out at the surgeons' best guess.
Of course, if intersex conditions did not exist there would have been no need for any "normalising" surgery at all.
Before about 2000 the term Hermaphrodite or similar was used:
"The term "hermaphrodite" is considered inaccurate and stigmatizing for humans, as no human is completely both male and female."
True hermaphrodite is one of the rarest variety of disorders of sexual differentiation (DSD) and represents only 5% cases of all. A 3-year-old child presented with left sided undescended testis and penoscrotal hypospadias. Chordee correction was ...
pmc.ncbi.nlm.nih.gov
Actually about 3% of intersex conditions are true Hermaphrodites.
But hermaphrodites existed way back in distant history.
"Ardhanarishvara, an androgynous composite form of male deity Shiva and female deity Parvati, originated in Kushan culture as far back as the first century CE. A statue depicting Ardhanarishvara is included in India's Meenakshi Temple; this statue clearly shows both male and female bodily elements."
en.wikipedia.org
Intersex conditions existed in all societies:
"In traditional Jewish culture, intersex individuals were either
androgynos or
tumtum and took on different gender roles, sometimes conforming to men's, sometimes to women's."
en.wikipedia.org
In one study it concluded that Intersex conditions affect about 0.02 - 0.05% of the population.
Normal sex development depends on the precise spatio-temporal sequence and coordination of mutually antagonistic activating and repressing factors. These factors regulate the commitment of the unipotential gonad into the binary pathways governing ...
pmc.ncbi.nlm.nih.gov
But in America it has been discovered that about 0.2% of the population are intersex.
Being intersex means having anatomy that doesn’t fit into a male/female sex binary. Most intersex people are healthy and surgery isn’t necessary.
my.clevelandclinic.org
So that's about 680,000 intersex people in America.
This casts doubt on the original .02-.05% findings.
The American statistics applied to the UK would be about 140,000 people.
So not so "Very, very unlikely".
In fact, it's likely that there are far more than several hundred thousand intersex people, and well into the millions globally.
In comparison, the number of people who recorded their identity as Cornish in the 2021 Census is about 110,000 people.
So there are quite a few more intersex people in the UK than there are people who identify as Cornish.
But intersex medical recognition is still in its infancy. There will be many more older people who have lived with the intersex condition all their lives, and undergone "normalising" surgery but ended up with the incorrect sex being recorded.
So they changed gender.