With all due respect, Vancouver's "Chinatown" is part of and in any event borders what has been called the "worst neighbourhood in North America"......is this something to preserve?  The entire city and lower mainland has a huge Asian/Chinese population....most of whom I doubt even go to "Chinatown"......there is nothing to "save" here except holding on to the premiere spot as North America's worst neighbourhood...move on, move up, and stop this nonsense saving something that doesn't really exist.