Identity is personal. You need to start there.
In the natural world where we live and breathe, personal identity can get
complicated, but it's not broken. If an Inuit family from Qikiqtaaluk wants to
name their kid Anuun or Issorartuyok, they do, and the world copes. If the same
kid later wants to call himself Steve, he does. Again, the world copes. So does