Earlier quoted context omitted.
They can "ask" you for your Bitcoin, but the question is phrased, "Would you rather give us your Bitcoin now, or would you rather spend some time in jail first and give us the Bitcoin later?" It generally requires a court order to get money out of your bank. If it's a Bitcoin wallet, then they can just send the court order to you directly, and put you in jail until you comply (i.e. as many years as it takes). The dif…
The difference is fundamental in that the "property" still exists outside the control of the government. If a trusted source has access to it, they can still move it. If such thing were to happen, and afterwards you complied, then there would be little grounds to hold you for contempt of court.
The court system is not a computer program you can fool with clever tricks. If you are facing a court order to surrender money or other assets and try to evade it by moving the money around, you are just going to find yourself in deeper trouble. People have tried it before.