Or optionally something like The Scale of Ethnocultural Empathy by Wang et al. (2002) https://www.researchgate.net/profile/Yu-Wei_Wang/publication/232433824_The_Scale_of_Ethnocultural_Empathy_Development_validation_and_reliability/links/0c96051842ce1b4eb8000000.pdf, but related to other minority groups as well?
Article The Scale of Ethnocultural Empathy: Development, Validation,...