Anyone who has the power to freeze your bank account without recourse already has the power to seize you physically.
The IRS, US Government, EU or whomever has jurisdiction over your local bank already has the power and ability to seize your physical person. So I don't see what's being gained; if I put all my bank accounts into bitcoin the people you're trying to guard from can still come and coerce me with a gun anyway.
Meanwhile, anybody who isn't one of the aforementioned entities cannot do this, because even if they threaten or kill me, the banking system will reverse the transaction. Thus there isn't any incentive for anybody else to try to physically coerce me, because there's no way for them to keep the money.
Maybe they can, maybe they can't. You're making some non-obvious, generally reasonable assumptions about me. Your statements are true regarding me in the present, but I don't think they've always been true of me, and I don't think they will always be true of me.
The IRS, US Government, EU or whomever has jurisdiction over your local bank already has the power and ability to seize your physical person. So I don't see what's being gained; if I put all my bank accounts into bitcoin the people you're trying to guard from can still come and coerce me with a gun anyway.
Meanwhile, anybody who isn't one of the aforementioned entities cannot do this, because even if they threaten or kill me, the banking system will reverse the transaction. Thus there isn't any incentive for anybody else to try to physically coerce me, because there's no way for them to keep the money.