There are a couple of things you are missing, first is that they are not "super fiat rich" they have a high networth. As you said it, they don't bag hold fiat, they invest it.
But the more important thing you are missing is the fact that these super rich minority are playing the system and have already changed the laws to have these types of backdoors to help them evade being taxed. It wasn't always like this, they basically infiltrated the governments specially in places like US (mostly from Reagan time) and made all the changes to benefit themselves.
It can not happen in bitcoin world because bitcoiners don't have nearly the same "infiltration powers" and governments who want to tax them will find a way to shut any way you think you could use to evade their taxation...
i totally agree the term super rich has nothing at all to do with real cash-in-hand statistic
anyways
we bitcoiners do not need to change the laws.. we just have to LEARN the laws to realise the same fiat backdoors apply
education is the problem. most people do not know how to function at the same level as the wallstreet guys.. we as bitcoiners actually have more of an advantage because bitcoin doesnt has as many laws attached
i was recently debating people who were crying that their (affiliated business) mixers were soon to need to be licenced money service businesses..
i was trying to tell them instead of crying that their favourite money service business requires licencing now(being recognised for what it is).. they should be smarter and read the laws to find the backdoors. and learn how fiat businesses operate, to learn how to create a service that sidesteps the regulations
EG imagine if a passenger transport startup just cried about taxi cab licences and regulations.. uber would not operate.. but uber learned the law and offered a service that was not described as a taxi service thus doesnt need to comply to taxi-cab law
its education. learn how others do things. and apply them to how to operate bitcoin services.
So franky1 has now realised a strategy that Saylor has made popular ad nauseam, and people are wondering how to get those bitcon loans when all you have to do is search the internet:
i was the one telling people about the reasons he done things ages ago while it was happening.. but still later on people are not learning/using these tricks.. and yea it is ad nauseam
i see people in 2023 saying about how they "need" to use a centralised exchange with KYC to convert to fiat and then be taxed.
we need a better education program and better services that dont "need" to operate in this manner