If you tax the ownership, that's property tax, it already exists, and 1) It's already high in the most HCOL states (imagine paying 30K a year for a property worth 750K, that's Westchester, NY or many parts of NJ, and a handful of other states) 2) Imagine you're 75, retired, and suddenly your property tax spikes and the house you bought 20 years ago for 150 is now worth 750K, and now you're on the hook for 30K.
So that's out. Next we have taxing transactions. OK, so we up flip taxes (ownership less than X months), we increase transaction taxes on a sale, we can even rid ourselves of the cap gains tax exclusion for single and married couples, and perhaps even tax everything as short-term cap gains.
So now people will never sell.
What have you accomplished?
Or were you just expressing your emotions and letting others figure out the incredibly complicated logistics of your suggestions?