Why should someone be able to live off dividends if they have “ultra-rich” wealth at the bank? This person has a lot of money so if they live in an RV it’s obviously a choice they made.
Plus they could just spend some of that stock money and go below “ultra rich” level and get taxed less. And perhaps then they have to use part of their non-ultra-rich wealth to live their RV dream life to supplement their dividends. Doesn’t sound too bad.
TLDR; I don’t feel bad for someone that can’t live dividends when hey have more than one million euro in the bank.
Edit: while is still stand by comment, I do see I missed your point about fairness. Not too big of a problem in my mind. Or perhaps a solution would be to tax home values above X amount? (Edit2: and only the amount above X)