No it was created by them because they ignore those zoning laws and are willing to go to court to fight attempts to enforce them against their clientele. Finding a creative way to help people break laws with little chance of their being any consequences for yourself because you are a) in another jurisdiction and b) backed by billionaires like PG who believe they have a divine right to "disrupt" societies against the wishes of the people who live in them in the name if profit, is not something to be applauded. There is nothing "natural" about the creation of demand by Airbnb and it has brought little but misery to the poorest members of society while enriching those at the top.

There's indeed not enough housing supply to meet the total demand. There are various reasons for that, but that's the ground state. What AirBnB does is add to this an incentive for existing supply to further shift from serving city residents to serving tourists. Since housing supply isn't limited by low demand but by external and difficult to change factors, what AirBnB does is just making a bad situation much worse for cities worldwide.

Not really, land is fixed, you cannot create more land out of nothing. It is not yet another startup that can be created because VS has a lot of money because many government all over the World think that printing money (named nicely QE) is a good idea.