Where is your bitcoin if after paying $40,000 only the swap of symbols happened in your electronic address? This: "0", changed into this: "1". What exactly is "meaningful"?
It's meaningful if we both agree it is. It's as simple as that.
After that, mathematical symbol "0" was swapped for this symbol: "1". And that means you are "free".
If they later find others who're willing to give their goods & services for a currency that is controlled by no financial institutions, it is called freedom. Monetary authorities are run by people who may abuse their position, against the rest, for their own benefit. They're central points of failure.
Humans do mistakes, whether those happen on purpose or not. If a financial institution (such as a central bank) does a mistake, its impact is potentially on the entire economy. And it is highly likely that people will, sooner or later, abuse their power. That's why.
The fact that no one is able to change a symbol in your address, making it censorship resistant
It is clear that you haven't understood the basics. Censorship resistant comes from the lack of feasibility to reverse a transaction, not to change symbols on addresses.