FWO ~ Your white-washed conclusion is presumptuous.  DeBaca did not write about White communities, her perspective is Latino.  Hers is not a critique of lack of diversity in White communities per se, but as a threat to large cities through gentrification of economically marginalized communities, as your opening quote clearly illustrates.  Likewise, she does not decry the lack of preservation "in amber," but acknowledges the changing face of America.  "Erasure" is the key word, erasure through economic policies that, in Denver's situation, fail the communities of Globeville & Elyria-Swansea.