Taxing rich people more for having multiple homes isn't going to make them give up those homes (we are talking about "1%"ers, right?), all it is going to do is

Taxing rich people more for having multiple homes isn't going to make them give up those homes (we are talking about "1%"ers, right?), all it is going to do is increase your tax revenue. If you plan is to use that additional revenue to provide housing for the poor, the knock yourself out, I think that is a swell plan. However focusing on where that money comes from is a distraction. Rich people having multiple homes is a distraction that is engineered to tug on irrational anti-rich sentiment. Tax them if you want, but don't mistake them for the actual problem.