Earlier quoted context omitted.
If your perception doesn't match your body, would you prefer to change the perception or change the body?
It seems pretty clear to me that changing one’s body is preferable to changing who you are. The former is something you’re born with, but the latter is something you can decide for yourself.
If you feel like a man but you don't look like a man, why could that cause any identity problems? It must mean your body is actually part of your identity, so changing it changes who you are