I guess both ‘identity’ and ‘heritage’ are doing a lot of heavy lifting.
And I know this is mostly pedantry, but there’re terms that actually do fit better. Like immigrants, settlers, etc.
My great grandad was from Sicily. I’m from Minnesota. I don’t have any heritage or identity that has much to do with Sicily. I do have heritage as the progeny of immigrants from Sicily. But not Sicily.
Excellent opportunity for sabotage.