Part 2 of the series explains a practical problem: identiites can be very important for living people we know personally, but because they are internal and subjective they are hard to access in the ancient world
https://bookandsword.com/2021/02/06/identities-are-hard-to-get-at/Jubal, if you ever have energy I would like to know what unambiguous term you use for sentences of the form "Lloyd was born near Mt. Snowdon but identifies as European" or "after escaping from the small religious community where he grew up, J now identifies as male and is pursing his first degree in accounting." I think that having unambiguous, well-defined terms is much more important than
which terms someone uses
Unambiguous as in different from "Lloyd is Welsh," "Lloyd is a British citizen and no longer part of the EU," or "J is male in gender" or "J's friends know him as male" (or for that matter "Musa's income puts him in the census' working class, but he identifies as middle class"