Interesting statistics there.
The thing you are missing is that while the number of trans identifying men in prison is low, the number of women who are convicted of committing certain kinds of crime is even lower, so recent misreporting of sex by the police and courts has a huge impact on the understanding of data.
For example, Women make up 4% of the prison population, and only about 3% of those women have been imprisoned for sexual offences, so these women make up 0.12% of the prison population.
On the other hand according to the Ministry of Justice 60% of the male trans prison population has been convicted of sex related offences, so using an estimate of 0.26% for trans identifying males, 0.15% of the entire prison population.
Women are sceptical of data on women committing 'male' crimes because the numbers have been inaccurate.
what you call 'statistically microscopic' figures have a huge influence when we look at small numbers.
It's pure statistical delusion driven by an online obsession
No, it's perfectly reasonable to insist on accurate reporting on sex.