In essence...
Tax not paid by ultra wealthy goes back into he system as loans that extract interest that in turn is used to buy assets sold to pay for interest, those are then rented back to the system to extract more interest.
In essence by allowing no tax to be paid by the ultra wealthy, we facilitate the death of the middle class and transfer of everything to the very few - with mathematical precision.
Ultimately we need to ask ourselves why we have a society, what's it's purpose.
For the few or the many ?
While I probably prefer a society that is more "for the many", I can't exclude the possibility that some people have different preferences and would not want to impose my opinion.
Considering this, everybody might have to make (at some point in their lives) hard choices regarding where they choose to live. Yes, one should fight to improve the society one is living in, but there is also a saying "only the fool persists in their folly" ...