Maggie's Farm

There's a percentage of people born with incorrect chromosomes, who have neither XX nor XY, but XXY.
Those people quite frequently have mental development that's different from their physical development.

And quite apart from that, who are you to judge? You consider deviants who believe in an invisible ghostly spirit with a wicked sense of humour without any evidence to be perfectly sane.
You consider the very shortest display of particular parts of the human body to be so evil it should be against the law, yet revel in looking at just those bits.

Now who's the real deviant? You, with your mixed up sense of good and evil, mores and realities, or someone who feels very strongly, most likely due to some hormone imbalance combined with decades of having specific mental self-images reinforced, that they are a different gender than their birth certificate (which is based solely on their physical body) tells them they are?

I much prefer the process of rebuilding a T-person to be covered by health insurance over nosejobs, abortions, drug rehab, boob jobs, and such things where there is no medical reason the patient had to need that procedure (I'm fine with corrective surgery to recover from severe injuries, abortion in case of rape, but that's about it).

I'm sure you have to sign a lot of forms, disclaimers, etc. etc. before they start.
At least where I live, there's also years of mandatory psychiatric counseling, hormone therapy, and things like that before you're even considered for the procedures (I've a very dear friend going through that right now, despite it estranging her (on paper still his) parents, losing her job (despite anti-discrimination laws), most people she thought her friends running away.
People do feel that strongly about it, and being transgender is a recognised medical condition. It's not "just between the ears" (and even if it were, that'd be recognition as well as a medical condition, albeit of a different kind).

Now, I fully agree far too much is being turned into diseases, mostly mental issues, but we're talking physical here, and these are not freaks, at least the ones who end up going all the way, as for a freak (your typical "crossdresser" who hangs out in sex clubs trying to pick up lesbian girls) the emotional, monetary, and social cost would be far too grave.