Gentrification is the result of powerful economic forces. Those who misunderstand the nature of the economic forces at play, risk misdirecting those forces. Misdirection can exasperate city-wide displacement. Before discussing solutions to fighting gentrification, it is important to accept that gentrification is one symptom of a larger problem.
Gentrification has always been a top-down affair, not a spontaneous hipster influx, orchestrated by the real estate developers and investors who pull the strings of city policy, with individual home-buyers deployed in mopping up operations.