It's a differant mindset. I wouldn't dismiss it, the mindset is there for education and advocacy purposes. It may be hard to grasp for you, but do not dismiss those who are open about thier trans identification. They do more good than harm. I wish I could say the same for those transsexual woman who insult these women for openly identifying based partly on the logic you just stated (but warped to a much further degree).
Its called advocacy and education, they are doing it in their own way. The only way they can tell their story effectively and educate is by saying they are trans, basically outing themselves. The truth is the only way people, be those who think they are transsexual or just the general public, are going to understand this issue is to use identifying words such as transwoman. Because it creates fewer complications in terms of language.
Hopefully that helps. These people are out and proud types, and you seem to be somebody who more than likely would prefer to assimilate fully without any desire to share your past and your experiences in a public way.
Any activist, advocate, and educator uses transwoman, because that is exactly what we are...transsexual women. The reason the term is there for these purposes is because assimilated or out, we do face a special set of problems most GG will never face because of who we are. The use of particular language can be used to call attention to what those issues are in a meaningful and effective way.
