Supply and demand. Corporate interests will only buy homes when theres a profit incentive. A housing shortage makes great profit opportunities.

If there are too many airbnbs so they don’t get rented, there’s no longer a profit. If there are enough houses that you can’t buy to flip at guaranteed markup, there goes the profit. If there’s enough houses that you’re not guaranteed a quick sale on your investment, there goes the profit. The point is there are limits on those ownership patterns so you can build your way out of it