>>41350991
That's not accurate to the anime at least.
She had to choose between either being a man or one of her best friends dying. Also from her perspective at that part of the story, she had been a cis woman her whole life (due to the world line shift). So technically the Ruka that sacrificed being a woman to save Mayuri wasn't even trans. It's a complicated and difficult hypothetical, I'm not sure what I would do if I was in her position