There is still no scientific evidence to support the born that way theory. None. On the other hand, there is plenty of scientific evidence the environment in which we are raised is key. Even scientists with an attraction to the same sex do not believe they will ever find evidence homosexuals are born that way. Of course, you won't hear that from the media. You have to actually read the scientific studies.
Actually, there’s a study from a few years ago that involved brain dissection. There’s a bundle of nerves that runs around the hypothalamus which is much smaller in females than in males.
The researchers found that men who identified as transgender had the smaller “female” sized bundle but men who identified as gay had the normal male size.