Comment by ProfessorLayton

A lot of these big fights also happen because of the "FU, got mine attitude" that affects owners and renters alike. The fact of the matter is that cities like San Francisco are mostly composed of renters, and could easily outnumber NIMBY homeowners to build much more dense housing. However, thanks to policies like rent control, among other issues, renters don't organize and vote to advance their own interests the same way homeowners do.