> Today, the heirs will instead keep the inherited home, rent it out seasonally on AirBnB to earn a little money, keep any mortgage they have on the place they live, and reap the value increase of their AirBnB unit every year. That value increase can be used as collateral for many things.
Money is fungible, finance people can do this kind of transformation with anything and do, all the time. Ever heard of a company or rich individual doing a sale-and-leaseback transaction? That's the same thing in reverse.
> In the industrialized world, your yearly salary (value increase) is much higher from earning real estate and doing nothing... There is no shortage of housing.
On the contrary, the shortage of housing is the underlying reality that makes all the flashy transactions on top work. Why does the value of housing keep going up? Because demand is going up and supply is staying approximately constant, or even going down. Everything else is window dressing.
> if you add up the value of all properties listed on AirBnB, that amount would dwarf not only Apple, but the entire stock market.
Maybe, but those properties are listed on a bunch of AirBnB competitors at the same time. AirBnB has very little market power over them; if they try to hike up the rates or anything they'll lose their customers. The real estate market is important. AirBnB isn't.