Imposing tax on cryptocurrency is much better because it is a good sign that government fully accept and support on cryptocurrency, and it helps the economy grow faster in no time, and it is expected some rules to be followed.
Stop believing the bs that your tax income is spent well by governments, it's not.
Another major stupidity factor is that people believe governments lose out on income if we don't pay tax over our crypto gains and holdings. How can they lose out on something they never had in the first place? If crypto didn't exist there would be 0 (zero) income for governments. Right now they enjoy an extra income stream from people paying tax as forced upon them.
Governments aren't in a position to demand anything from you when it comes to Bitcoin. There is no central authority with the ability to freeze or seize your assets.
We should move away from governments where we can, not further stimulate their extortion and theft practices.