Not only immigration. HUD is planning to force low-income housing into upscale suburbs.
Here in the People's Republic of New Jersey, they've been trying to accomplish that type of social engineering for decades. But the way it was intended is not the way it's worked out. "Poor" (as defined as low income) people who want to live in wealthy areas generally aren't the same kind of "poor" people as the "poor" people who live in Newark, Camden and Trenton. In the United States, in 2014, "poverty" doesn't have much, if anything, to do with money.
Good luck with that.