The affordability crisis in the first half of the 20th century saw people leave their unaffordable homes for affordable places like Toronto. Their home regions unquestionably suffered for it, but Toronto was able to flourish because of it.
Maybe it's okay to see new places get their turn? After all, Toronto would just be a poduck town if such movement never happens. Did nothing good come of Toronto's massive growth?
People didn't move to Toronto from Montreal because it's more affordable. They moved because of the language laws that make English speakers second class at best in Quebec.
Apparently the "free market" can solve its own problems.
Make living in one place too expensive and people will leave, meaning those landlords (and others who are overcharging and excessivley profiteering) will suffer or be forced to lower prices.
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Or maybe, an unregulated free market isn't the most effective way to run a society...