I worked at a hotel for several years in the early 2000's the housekeeping staff was overwhelmingly black women and men but shifted dramatically to Hispanic women and men after new penny pinching ownership took over and started using some dubious temp agency.
I don't begrudge the immigrants, I'm second gen on one side and wanting a better life is completely reasonable. I do however think it's completely disgraceful that we turn a blind eye to employers that break the law because they don't want to pay a living wage, or want compliant semi-disposable workers.
The Hispanic staff that doesn't seem to have anything close to living wage is a pervasive feature in the Bay Area too. I'm not sure if, and to what extent, they displaced black workers in the Bay Area though.