Plot bunny- forensic necromancy

So I've thought for some time now that if necromancy actually worked, that it would get developed into a discipline parallel to forensic anthropology. To riff off the book Dead Men Do Tell Tales, so to speak. Any thoughts?

Plot bunny -- John Scalzi's Lock In

So I started wondering about the threeps and body dysphorism and transgender and asexual issues..,

What about normal (non-Haden's) people who experience body dysphorism or who are transgender or asexual agender? (Edited per neotoma's comment) Would they be advocating for access to threeps in order to have a body/threep that would match what they physically wanted to be? And how would society deal with that?