Dear Editor, Homelessness in Canada has doubled since 2018, driven by the shrinking supply of affordable rental units for the lowest-income Canadians. According to the Canadian Alliance to End Homelessness, nearly a million more Canadians are on the edge of homelessness right now. So without action, the problem in our community is likely to get even worse, especially in the Campbell River, Comox Valley areas. But we have a once-in-a-decade oppor…