@user08101988 Almost every factual conclusion you have drawn here is demonstrably wrong or materially misstated. Your own paper says its trans participants were biologically and genetically male; the “92 offenders” statistic is outdated and uses the wrong denominator; and the bathroom study was not CNN research and did not find that inclusive laws caused significantly lower assault rates. Here is what the evidence actually says.
1. “Trans women are women” is not a scientific finding
In a biological or sex-based context, a trans woman is male: a male person with a female gender identity. Some people use “woman” as an identity category socially, but that convention cannot change sex. The ONS defines a trans woman as someone registered male at birth who identifies as a woman. HMPPS defines transgender women as biological males who identify as female. The Supreme Court unanimously held that “woman”, “man” and “sex” in the Equality Act refer to biological sex. Trans people remain protected under gender reassignment.
www.ons.gov.uk/peoplepopulationandcommunity/culturalidentity/genderidentity/articles/census2021genderidentityestimatesforenglandandwalesadditionalguidanceonuncertaintyandappropriateuse/2025-03-26
www.gov.uk/government/statistics/hmpps-offender-equalities-annual-report-2024-to-2025/hmpps-offender-equalities-annual-report-2024-25--2
www.supremecourt.uk/cases/uksc-2024-0042
2. This was not “a study done by the NIH”
It was a 2022 Journal of Clinical Medicine paper by researchers affiliated with Auckland, Jena, Missouri, UCLA, USC and Uppsala. NIH funding and a copy in PubMed Central do not mean the NIH conducted it; PMC is a repository.
neuro-jena.github.io/pdf/Kurth-JCM22.pdf
3. The paper directly contradicts the claim that its subjects were biologically female
The 24 trans participants were described as “biological sex: male; perceived gender: female”. Every one was confirmed to carry the SRY gene associated with male development, and none had started cross-sex hormones.
On the paper’s scale, 0 was the average female control and 1 the average male control. The trans group averaged 0.75: much closer to the male reference and statistically different from both groups. The authors suggested a possible neuroanatomical correlate of gender identity. They did not conclude the participants were female; they repeatedly called them biological and genetic males.
pmc.ncbi.nlm.nih.gov/articles/PMC8955456/
4. A “brain-sex” score is not somebody’s actual sex
This was a probabilistic machine-learning score based on average structural patterns. The classifier was only 88.3% accurate in controls, demonstrating overlap. A female with a relatively male-typical scan remains female; a male with a relatively female-typical scan remains male.
The authors acknowledged there was no clear consensus and called for larger replication. A much larger ENIGMA analysis of 803 people, including 172 untreated trans women, found complex region-dependent patterns and a distinct phenotype, not brains that had become the opposite sex. Neuroanatomy may inform research into gender identity; it does not reclassify sex.
pubmed.ncbi.nlm.nih.gov/34030966/
5. Sex is binary and immutable
Human reproduction is organised around two and only two gamete types: sperm and ova. Male and female are the two reproductive sexes. Differences of sex development can make characteristics atypical; they do not create a third gamete or sex.
Breasts, body-fat distribution, facial hair and voice are secondary sexual characteristics. The clue is in “secondary”: they do not define sex. Hormones and surgery can alter some secondary characteristics and appearance, but cannot change the reproductive pathway that developed the body or turn a male into a female.
onlinelibrary.wiley.com/doi/10.1002/bies.202200173
6. “Trans is an adjective” proves nothing, and women need not accept “cis”
Grammar is not biology. “Trans woman” names a male person with a female gender identity; adding an adjective does not place that person in the female sex class.
“Cis” is a comparatively recent label for people who are not trans. Most women reject it as imposed and some regard it as offensive because they do not identify with an inner gender identity: they are simply women, meaning adult human females. Most people consider it a slur, but nobody is obliged to call herself “cis”. There is one female sex; a linguistic label cannot make males a type of female.
7. “92 trans-woman sex offenders is 0.000135% of the population” is statistically meaningless
That percentage divides 92 by roughly 68 million—the entire UK population, most of whom are not trans women. Using the older rough ONS figure of 48,000 trans women would make 92 about 0.19%, not 0.000135%, although the ONS now warns against treating its Census figure as a reliable population-size estimate.
Nor is 92 current. The MoJ reported that on 31 March 2024, 151 of 245 transgender prisoners whose legal sex was male had a sexual-offence conviction. The category also included people identifying as non-binary or gender-fluid, so it should not be relabelled as exactly 151 trans women; but it disproves the claimed current total of 92.
questions-statements.parliament.uk/written-questions/detail/2024-12-16/20297
8. Inclusive areas were not shown to have significantly fewer sexual assaults
This was not CNN research. The study compared a small number of Massachusetts localities, not inclusive states with ban states. Its principal analysis found no statistically significant relationship between adopting the policy and recorded restroom incidents (p=0.454). It therefore does not show that inclusive laws caused lower assault rates. It found no measurable increase either, but that narrower null result is not the claim you made.
escholarship.org/content/qt4rs4n6h0/qt4rs4n6h0.pdf
9. “You are reducing women to body parts” is a failed gotcha
Nobody serious defines a woman by one body part or by successfully having babies. Infertile women, women without a uterus and post-menopausal women remain female because sex concerns overall reproductive development, not current fertility or a checklist of parts.
The attempted gotcha is rubbish as an argument. Women’s historical oppression was imposed because they were female: through pregnancy risk, reproductive control, physical vulnerability, exclusion from education and property, and male violence. Feminism required naming the sex class affected. Recognising it is not regressive; pretending it can be entered by declaration is.
10. None of this establishes a right to enter female-only spaces
An MRI score, identity and preferred adjective cannot decide safeguarding policy. The Supreme Court confirmed that the female class under the Equality Act is biological. Schedule 3 permits genuinely single-sex services where justified and proportionate, including situations involving undressing, physical contact, privacy, dignity and vulnerability. The 2026 draft EHRC code says admitting trans women to a female-only service means it is no longer single-sex under the Act, while recommending mixed-sex or individual alternatives where practicable.
www.legislation.gov.uk/ukpga/2010/15/pdfs/ukpga_20100015_en.pdf
www.gov.uk/government/publications/equality-act-2010-code-of-practice-for-services-public-functions-and-associations-2026/equality-act-2010-draft-code-of-practice-for-services-public-functions-and-associations-2026
Risk cannot be waved away. In the England and Wales prison cohort on 31 March 2024, 151 of 245 legal-male transgender prisoners had a sexual-offence conviction: 61.6%, compared with about 17% of the overall male prison population—more than three and a half times the proportion. “Sexual offence” includes contact and non-contact offences, and prison data do not imply every trans person is an offender. They do show why it is reckless to insist that male sex is irrelevant in prisons and other intimate or vulnerable settings.
questions-statements.parliament.uk/written-questions/detail/2024-12-16/20297
hansard.parliament.uk/Commons/2025-11-24/debates/39E38194-1453-4B00-B552-2549E0643A42/details
11. You can state your pronouns and say you feel non-binary; others need not agree that this changes your sex
Pronouns and descriptions such as “trans-fem non-binary” are statements about personal identity, not evidence about sex. You may describe your feelings and request particular language. Other people may reject the belief that identity changes sex or makes a male person a woman in a sex-based context. Courtesy cannot require women to deny material reality or surrender their boundaries.
A male person can know discomfort with being male or an affinity with femininity. That does not provide the lived experience of developing through female puberty, menstruation, pregnancy risk, menopause, female physical vulnerability or being treated throughout life on the basis of being female. Feeling feminine is not being female; femininity is a set of cultural stereotypes, not the definition of womanhood.
Your evidence therefore does not show that trans women are biologically female. It shows SRY-confirmed males with a group-average brain pattern somewhat less male-typical than the controls, while remaining closer to them. That may inform research into gender identity. It neither changes sex nor creates an automatic entitlement to women’s single-sex spaces.