is there an intersex inclusive term or phrase that describes people who spent their childhood being treaated/perceived as girls?
Socially imposed gender - socially imposed as female and socially imposed as male - are the main terms I see used. They don't rely on AGAB (ie; an intersex person AMAB can be socially imposed as female), and they can be used in both intersex and perisex contexts (ie; instead of saying "trans men AFAB" [which is incorrect usage of AGAB language], you'd say "trans men socially imposed as female" because that includes trans men of any AGAB that were treated as girls by society.)
Some people criticize them for sounding close to "socialized as male/female" which has problematic TERF connections, but I think the important part of the term socially imposed gender is the *imposed* part. As in, the person isn't being "socialized" as a gender, but rather, society is *imposing* a gender upon them against their consent.
And someone's socially imposed gender can change. A person once socially imposed as female can later be socially imposed as male, or both simultaneously, or neither. That's known as inconsistent socially imposed gender (ISIG). People who have only one socially imposed gender in their life are known as CSIG (consistent socially imposed gender.)
In the case of ISIG, the inconsistency can be due to being reassigned a gender due to intersexuality, being reassigned a gender due to a cultural gender, transitioning, detransitioning, etc.
