As far as I'm aware this isn't even something transmen have been asking for, so is the goal literally just to put as many female people at risk of harm as possible
June 2018 Daily Mail article:
'As more trans women who were convicted as men hope to follow rapist Martin Ponting into female wings, prison governors fear vulnerable inmates could be attacked'
(extract)
"Prison reformer Frances Crook said that she was worried that ‘some men with a history of extreme violence and sexual violence against women have found a new way of exercising aggression towards women’.
Ms Crook, executive director of the Howard League for Penal Reform, added: ‘These men are not transitioning because they like women and want to be a woman, but in order to exert a new kind of control and dominance over women, a sort of infiltration.
‘Moreover, the process is inherently discriminatory. A woman identifying as a man could not be transferred to a man’s jail because placing a person with female attributes into a prison to live with 1,000 men, all using communal showers and living areas, would put them in serious danger.’ (continues)
www.dailymail.co.uk/news/article-5798945/Trans-women-convicted-men-attack-vulnerable-inmates.html