I do not think in such abstract terms. I know a woman who used to be a man, but not the reverse. Since I cannot even picture what the question is about, I will defer thinking about it until and unless such reality presents itself as something relevant to me, and then I will see what my thoughts, reactions, and choices are. I think, also, that the likelihood of it happening is small, so actually thinking about it would be wasteful of my time.

Mike, since this question is not relevant to you now in practical terms, I think that the essential question you really are asking yourself is how flexible and accepting you are. It sounds like you would like to think of yourself as open-minded, but are a bit worried whether this ideal would sustain reality testing. Further, it sounds like you think that in the end you would be able to live up to the standards you set for yourself, but only after the initial shock wears off. Is this more or less where you stand?