If the government is after you, crypto isn’t going to protect you. It might make the cost to go after your money a little higher if you’re willing to violate court orders and live as a fugitive.
That’s what I meant when I said the cost to seize your money goes up if you’re willing to defy a warrant.
However, if using crypto as a currency becomes mainstream, governments will crack down.
Crypto might be decentralized, but governments could easily require registering wallets, and force businesses to only transact with people who are registered.
You can co-operate with an investigation whilst also not handing over complete control of ~all of your assets for the interim.