Allegedly, "if you want to preserve wealth - it's easy just buy wealth (stocks, real estate, land)."
In other words, this is intentional to push people towards preserving wealth in the form of assets. But this creates issues where assets become over-valued - and some assets (real estate and land) are necessary to survive.
Your proposal is to tax the ownership of assets (i.e. the preservation of wealth) in order to ... push people back towards capital (i.e. for the preservation of wealth)?
This doesn't really compute.