Why make this personal and call another poster here lazy? Some of us see a difference in getting plastic surgery in order to look younger, thinner etc...and getting it to change your sex/gender. That's not one in the same. If you disagree then let's state our cases and agree to disagree. For the record, I disagree that the cases are analogous. That's not to say that some people like Joan Rivers, Priscilla Presley and others get obsessed with their outward appearance to an unhealthy level...but it'd be a stretch to go so far as to label them mentally ill.
Personally I think some of these trans folks are mentally ill but not all of them. From what I've seen, Kaitlyn Jenner, Renee Richards and Chas Bono do not appear to be mentally ill to me, although I do think they're misguided.
You're using an awfully wide brush here that I'm not comfortable with