'Identity' is a freighted term to use in a philosophical context.

He'd have been more than just disappointed if he'd ended up an eat-all-you-can meal for the zombies outside.

Jan 21, 2006, Why Am I here?, “Simpsons Fancomic (links to pages)”, in alt.tv.simpsons, Usenet, retrieved 2022-08-31:

I shall devote myself for a time to the examination of the Roman Catholic dogmas, and to a careful study of the workings of their system: if I find it to be, as I half suspect it is, the one best calculated to ensure the doing of all things decently and in order, I shall embrace the tenets of Rome and probably take the veil.