https://vancouversun.com/news/local-news/vancouver-neighbourhood-next-broadway-plan-treatment
Most of BC is wilderness and there are only a handful of potential big urban areas in BC.
https://dailyhive.com/vancouver/rupert-and-renfrew-station-area-plan-vancouver-final
The Greater Vancouver Region has been held back for several decades. Of course affordable housing should be part of the overall growth plan. All of BC still has less people than just the Greater Toronto Area & Canada has yet to have even just 1% of the world's population.
The 3 lane Lions+Gate+Bridge and the 2 car joke that is the Canada+Line are fine BC examples of the reluctance to build proper big city size infrastructure. There should have been at least 2 bus tunnels & 2 HOV tunnels near the LGB. If the C Line couldn't have 10 car trains, the stations should have at least been designed to accomodate 5 car trains, not an eventual 2.5 car joke of a train. There also should have been a train tunnel near the LGB by now, but that's what a proper big city would have done.
