Because you said:
> debt costs will adjust accordingly and pass on to wealthy still
Let’s think about some the factors that may influence this imaginary debt cost:
- whether asset is an appreciating asset
- risk management strategy of the bank
- whether account manager wants to have competitive terms so that the wealthy customer won’t find a better deal
And so on.
How is this not a mystery cost? Sure the bank in some distant future might some tax when it decides to liquidate it. But by that time, the assets would have been in pools for such a long time that we’d never know exactly how much “tax” was paid.
I’m not going to say I know the solution to this problem because I honestly don’t think there is a way to fix this. Tax avoidance will always be there.