What does the author mean by doing blaxican identity

"Blaxican" is a term for peoples who identify to be of both African and Mexican descent (Afro-Mexican).

These people trace their roots to both the continent of Africa and to the Latin country of Mexico. Often times these people originate on the West coast of the United States (especially to the states of California, Texas, Arkansas, etc.) where people of African origin and Mexican origin live in close proximity to one another and choose to culturally intermix.