this is a huge argument for a real estate tax on non-primary residential property. Then, triple the tax its not rented during the year.

do we want to allow wealthy princes to have a pied a terre on park ave ? OK. Let them pay in blood for the privilege.

Of course, neither "progressives" or "conservatives" will be willing to threaten upper classes, real estate lobby, and political donors, with such a tax.. despite that the people that stand most to gain from this would be lower income AND first time owners ...who are voters in their own district!