If bitcoin is just a replacement for existing processes, we're already enslaved.
Also, who said bitcoin wasn't confiscatable? If someone jumps out at you right after you've unencrypted, reinstalled and logged in to an account and incapacitates you, now they're logged in to the account.
Physical value has the problem that it can be confiscated on sight and physically moved. Digital has that benefit of requiring authentication. Pretty simple.
You'd have a point if somehow the government could externally seize my bitcoin wallet without being in the same room as me or using my credentials, like they can with any bank account.