In this universe, it’s the brain that make you who you are. As long as your brain in intact it can go into any body it wishes. But it’s the brain (or the personality / person within) that determines the gender.

My Magnum Opus was finding Gally/Alita in a junkyard under Tiphares, derivative work to be sure, but still one of the best things I ever worked on.

I remember when he was thinking of casting Jessica Alba way back in the day to be Gally/Alita