Why not use banknotes, they re well less susceptible to government control of spending but oh surprise a lot more to control of the cash grab speculative aspect - and hard to carry $600M of them in a hurry after a heist, unlike recent defi exemples.
How can you exchange bank notes electronically?
The first question is why would you want to transfer money from A to B electronically without any kind of reasonable guarantee or safeguard? The major use case is to avoid paying taxes. Feel free to add any other usage scenario that isn't skipping taxes directly or indirectly.
Mostly Monero. Paying for censored content with Bitcoin can be traced back to you and will get you in jail the same as paying via bank transfer.
And Monero is the odd one out here -- most other cryptos don't really help against censorship resistance.
Tor is open-source and can be audited for government backdoors.