Her fundamental error, along with many other current extremists, is to claim that it’s a human right to be considered to be the opposite sex.
The infuriating thing is that this erroneous view is supported by very influential parts of the judiciary in the UK:
It is important to respect a person’s gender identity by using appropriate terms of address, names and pronouns. Everyone is entitled to respect for their gender identity, private life and personal dignity. In this chapter, where we have needed to use an umbrella term, we have generally used ‘trans’ or ‘transgender’ in its broadest sense.
72. Be alert to issues about how someone prefers to be addressed: showing respect for a person’s gender identity includes using appropriate titles (Mr/Ms) and personal pronouns (he/him/his; she/her/hers). Some trans people prefer gender neutral terminology (Mx/they/them/theirs), which should be accommodated if that is known.
73. Enquiries as to which personal pronouns/modes of address are preferred, although well-meaning, may be misinterpreted. Most of the time people, whether trans or not, make it clear what if any gender they identify as, by using commonplace gender cues such as name or by adopting dress commonly associated with a gender. If the individual has not already made it clear, then unless the issue comes as a surprise, it may best be addressed prior to the hearing, if necessary by the judge asking a clerk to enquire and perhaps suggesting to the clerk a form of words that might sensitively be used.
www.judiciary.uk/wp-content/uploads/2021/02/Equal-Treatment-Bench-Book-February-2021-1.pdf