The other day I was watching the Discovery Health Channel, and they were talking about genetic diseases such as porphyria, Down syndrome, cystic fibrosis and so on.
Nowadays, parents know, before the baby is born, if their child is going to be born with these genetic conditions, and they already have options (i.e, termination of pregnancy, experimental procedures, adoption, or nothing at all) So the way I see it, if TS'im can be recognized as a genetic condition by the medical community, not too much is going to change as far as society's views.
As I mentioned above, decades or perhaps centuries will have to pass in order for society to be educated about the complexities of gender identity. Now, Beth pointed out something very important....what about those who don't have the gene? will they be treated as something "less" human just because they don't carry a genetic footprint?
I personally think that we're better off not knowing the cause. Our focus should be to educate the public and not to find reasons for what we are or we are not. Just my thoughts.
tinkerbell