Because that decreases the supply of housing available for those that cannot afford secondary residencies. If there is not enough extra housing supply, you end

Because that decreases the supply of housing available for those that cannot afford secondary residencies. If there is not enough extra housing supply, you end up raising rent prices. If the market isn't creating enough housing for some reason or another, middle-class and lower-middle-class are left hung out to dry. This dichotomy bleeds over into arguments about welfare state, supply-side economics vs high upper income taxes, etc. You can argue that people should be able to create value and earn however possible, but I'm going to disagree with that view. I think regulation and limits are appropriate in some cases, this being one of them.