Why did visa and the banks question you? What were you really trying to do?
Whether it be war, tyranny and unjust sanctions, crashing economies, or just avoiding the arbitrary and often unjust fees, rules, seizures, and bannings imposed by private payment networks and services like paypal or visa, humanity will always need way to exchange cash. I for one am glad crypto (as a means to transfer funds) exists, glad it will continue to exist, and will continue to support it in any way I can.
To me, what it provides to humanity far outweighs the negatives.
Trillions of dollars are stolen from the people by money laundering and tax evasion every year, and cryptocurrencies are one of the ways this is accomplished.
Yes, some people live in countries where the law is hostile. However, your solution, "Let's evade all laws concerning money," is WORSE, not better.
If the argument is bad stuff possible then your argument is to abolish government.
We cannot presuppose that breaking the law is necessarily bad or that following the law is not bad.