Taking someone's assets vs coercing them to hand over their assets, are not the same thing.
You can take my gold, my dollars, my factories, my real estate, all by force.
You can take my freedom, you can take my life, by force.
You cannot take my Bitcoin by force. You might be able to put me through enough pain for me to give it up. But this is not a guarantee.
We have been discussing this in the context of being a sneaky cyber criminal with a just law system. But imagine you live in a nation where the government (military junta) is "nationalizing" all wealth and assets. Then tell me the best way to protect your money.
If you were assuming that the law was just then you’ve been having a different conversation. I’ve just been assuming that this is the US legal system, nothing more, nothing less. Do not assume that the US legal system is just.
The US law system is reasonably competent, has a global reach, and can out-wait you.
As we speak, billions of dollars of illegal drug cartel money sloshes along the international banking system, sometimes enabled by the banks themselves. The powers that be seem very ineffective at stopping them. I think you have too much confidence in the capabilities of these systems.
If you are living in the US and spending money to support your lifestyle you are very likely within the reach of the law, and the money you are spending has to come from somewhere and go to somewhere. If you are not spending your Bitcoin and benefiting from it, then what’s the point? And if you are spending the Bitcoin and benefiting from it, then law enforcement can investigate those transactions.