Until you folks get your own programs up and functioning all together, sending animals to areas where they are wanted and where there are safe and loving homes seems to be a better opportunity then killing them. The Pacific Northwest, including parts of Canada have worked for years on spay/neuter programs, educating people about "puppy mills" and re-homing unwanted or uncared for pets to the point that  dogs are not available very often for adoption. There is a network among the groups and when an animal becomes available for adoption there are numerous applications coming in from all over.
There is a woman in Mexico who rescues dogs there, cleans them up, gets them healthy and people from Pacific states and areas in Canada fly down and bring them back to homes. Not to long ago twenty dogs were re-homed in Canada when volunteers went down to bring them back. Each person had to pay the airline fee but five people brought back the dogs to the people who had already completed adoption.