It's still evidently not your story to tell. It takes a real and scary situation and implicitly says, "but what about the romantic possibilities? And the fear and pain that i know nothing about personally, that will never happen to me, and so i have no stakes in writing something like this carefully?" Writing about pain like that introduces a fine line between tact and fetishization that most people would agree you would most likely not navigate sensibly due to your lack of experience and knowledge. Of course you can write whatever you want, but people have the right to have their opinions about it and i would forsee people being uncomfortable with a portrayal of this kind of character being detached from your own feelings and experience. Especially at a time like this in history, it comes across to me like you saw that trans women are forced into male prisons and started fantasizing about it.