The problem

The problem with transitioning is that you can change your legal sex, even on your birth certificate, but you can't change your entire bone structure.   Since bone structure is used to identify sex (among other things)- legally being female while your bones say 'male', well, if there's not enough left to show you were transsexual this unidentified body'll probably be sitting there wondering why there's no missng 30-40, white males that match it.

Now, I'm not sure where they get the statistics for how many of transsexuals are killed (I've heard one a month) or if those missing are just considered dead after awhile or how any of that works, but the thought that there might be a large drawer of unidentified transsexuals sitting in some morgue, well, it's a bit creepy.

Also kinda sucks, in a way.  No matter how much surgery you get or hormones you take- when they dig you up some thousand years from now they'll still know you by what you were born as.