If you own two homes, and you rent one out as a source of income, but all of a sudden that tenant doesn't want to pay, you have a problem. If you own a portfolio of 100 homes, and half the tenants don't want to pay odds are you can just sit on your appreciating assets until you sell it anyway.
What's even scarier is many of these units are going to remain un occupied forever. If you buy a house, and it goes up in value $50,000 per year, it might be easier to leave it vacant. The only solution is much easier zoning, and laxer building requirements.
For example, in LA apartments are mandated to have a parking space per unit. This can easily make the apartment cost 30 to 40% more to build. So the only apartments getting built start at $3,500.
I'm hoping this does eventually spur some change, it's getting too hard for working class people