Exactly. My high school (in South L.A.) was predominately black when I went there in the 80's. It's now 80% Hispanic.
I grew up in Norcal. Moved out of state for good. Back for a visit I was shocked to see my old Burger King on Broadway in Oakland had gone from 100% black employees to 100% Mexican/Hispanic in just the few years I was gone. Once they get a Mexican manager who hires all Mexicans the blacks are SOL.