I don't think that I have the misplaced sexuality of a women at all. There are people who are born with differences in the formation of their genitals that either indicate the presence of both sexes, or are considered to be inappropriate for the assumed sex of the child. Much like getting an accurate percentage of gays to straights, that is a very hard question to answer because of the social stigma involved. I think the wide variation comes from what is and what is not considered to be in the intersex birth definition. There are quite a few reasons why children are born intersexual.
Some cases are hereditary.
Some are spontaneous genetic mutations, and some were caused while the infant was still in the womb and the mother had taken Progestin, a drug that was supposed to help a woman prevent miscarriage. Just to clear up any possible confusion, there is no such thing as a child born with a complete set of reproductive organs of both sexes. Some intersex children are born who would mature into adults capable of reproduction and some would not produce either eggs or sperm. In some cases, it is in the interest of good health to surgically correct the difference. Sometimes the child is at great risk of constant discomfort or chronic urinary infections that might destroy the bladder and kidneys.