If you think deeper about this, you will inevitably agree that it takes just "1 court order on some bogus charge" to put you in jail or even worse than that. Will 10 multisig wallets help you anyhow in this case? The weakest link is the man himself, not gold or bitcoin...
It wont save you from jail but it will save your wealth. If you are a victim of a political thing in a tyranical country then they can take all your wealth.
99% of populace (save for some die-hards maybe) will eagerly tell all their multisig wallets once they get into a serious scrape. Also, what will your wealth do for you if you are in jail and will probably spend there the rest of your life? And the chances for bitcoin to be outlawed are much higher than for gold...
The point of the multisig is that multiple people sign the transactions. Say you have 6 friends all around the world that you trust, so you will need 3 out of 6 to make a transaction, pretty good way to store wealth.
Also let's be serious, life inprisonment for holding bitcoins? Thats bullshit tyrrany, if people put up with that, then they really deserve it.
And actually chances are much higher for gold to be outlawed, it was outlawed many times already in USA and communist countries. Bitcoin hasnt.