I don't know if I can tread the line to where I do not conflict with a friend, as there are so many here, but here goes anyway because I think sometimes we pick the wrong words.
I believe in levels of dysphoria. A person who has to transition has a high level; a person who doesn't transition but feels transexual, may be a notch or two lower and isn't quite pushed over the edge to transition. A person who feels completely male but enjoys woman's clothing, perhaps has none.
I do feel choice is a dangerous word as it is used politically against us. I am in the battle daily and I can tell you, if we latch upon "choice" we are done. But how much we are driven is more apropos. I know how much I was driven and it was enough that I had to transition. Someone who doesn't transition, may feel driven, but not enough to be ready to risk all and able to cope, at least somewhat, with that space they create.