I'm all for this, obviously the housing crisis is caused by a bunch of factors but really no one should own a second home until everyone has a first. Providing more free/affordable (and actually high quality) housing is also important, but preventing people who don't actually live somewhere from buying a house that will sit empty or be rented out to tourists for a majority of the year is a good thing and seems like a great starting point to try and tackle the airbnb problem specifically.