Yaarel
🇮🇱 🇺🇦 He-Mage
Probably, having at least one great grandparent, is enough to claim identity within an ethnicity. But obviously, the more assimilated one is out of that ethnicity, the more one needs to find a community to participate in to make an effort to sustain that identity.
Relatedly, an ethnicity has customs to formally adopt an outsider as a member of that ethnicity.
Relatedly, an ethnicity has customs to formally adopt an outsider as a member of that ethnicity.