I think your calculation is flawed.
The total wealth includes things like stocks and real estate and gold and art and just things ... Even in the most optimistic most hyperbitcoinized scenario Bitcoin wouldn't replace these things - just the money.
I did not find a good source for total market cap for all fiat currency But 95T would mean a little less than 1/4 of your calculation?
why you think that money cant take off worth of stocks or real state?
people want yields to gain or at least dont lose purchase power.
if you have hard money you have money that gain purchase power, that removes a good bit of people that invest in stocks or real state only for mantain or gain a little of purchase power.
that means that hard money can absorb value also of stocks and real state.