During the Cyprus financial crisis, on 25 March 2013, bank account balances over €100K were seized. BTC surged 87% that day, and 700% that month. [0,1,3]
When Greece was freezing / slowing bank withdrawals during its financial crisis in 2015, BTC price climbed.
IIRC BTC also jumped when Russia was getting involved in Ukraine in 2014.
It's not a perfect hedge, but I do believe bitcoin could be valuable if the world/governments go (partly) to shit.