To a large extent white moving to the suburbs is driven by people wanting to live among other whites. I understand this isn't intended to create white enclaves as such, but it has turned out that way. Most suburbs are majority white and have less crime, better schools and nicer places to shop. It's a fact. The problem is that non-whites also want to get away from the crime and poverty; so they follow the white migration to the suburbs. And eventually brings the living standard down.