the entire southern half of the province has a 1% vacancy rate right now, or lower.
the "free market" is not going to solve that problem. that is going to require government intervention.
and, we're going to have crisis levels of homelessness, now. for a long time.
it's not complicated: if you let tens of thousands of people into the country without a housing plan, you're going to create a housing crisis.
you can argue they shouldn't have let them in, or you can argue they should have had a plan, but you need to do the obvious math of letting them in without a plan and then prepare for the obvious consequences.