They probably mean that brown people and Asian people are the ones moving in. Some equate bad neighborhood as anything that isn't a white-only neighborhood. My brother-in-law is moving to Denver. We were watching videos on the city. Some guy has a 'bad parts of Denver' youtube video. He sounds like a white guy that has old rap songs in the background and basically just names all the black areas while in some cases doing a 'stereotypical black accent'. The only data he had was some of the areas have a whopping 4% unemployment. Yea, he posted that as a sign that the area was impoverished. So, plenty of people out there claim any black or brown area equals bad neighborhood.