Sam Fulwood III: In pursuit of equitable change

  Gentrification is a difficult subject to discuss civilly and publicly.

  For some people, such as filmmaker Spike Lee, just the mention of the word is blasphemy and a reason to launch into an expletive-filled discourse on the ills wrought by hipsters with rat-dogs on leashes and yuppie moms with baby strollers displacing residents in his old Brooklyn neighborhood.