So "well read" means "cites uses of colloquialisms with Wikipedia" these days. That's sad. It used to actually mean "well read." 

So just to be clear, you're making the blanket statement that "Hispanics" (a term that many Latin Americans hate for its use in the cultural equivocation of all Spanish speaking people) use the word "Anglo" (apparently the same sort of low-brow, passively derogatory word) to refer to white people, therefore Anglo in this usage is a term that we should all recognize as coherent and appropriate? How bizarre. 

For someone as condescending as you are, one would hope that you'd at least think through what it is that you're saying. "Well read." Do cite the rich literary history of Anglo-whitey. Haha!