How do you think Bitcoin's unregulatable nature differs from the unregulatable nature of physical cash?
2. If you move or store cash, it can be confiscated by the police: http://www.pbs.org/newshour/bb/nation/july-dec13/assets_08-1...
Bitcoin is impossible to "print" more than scheduled and it's much easier to transport and store safely than cash or gold.
2) The Silk Road bitcoins were confiscated by police just fine. In fact Bitcoin is in some ways easier to trace and therefore confiscate. If the cops can trace a transaction to you they just apply some rubber hose cryptography.
It is more easily dividable than gold.
Rubber hose is more expensive than QE. You can steal one person's stash, but cannot steal from millions at once (well, you can, but it'll be too obvious and very expensive). Just watch zebras crossing the river infested with crocodiles. The fiat currency is when all zebras find themselves in the slaughterhouse.