Imagine if Venezuelans fought back. Citizens launch their own cryptocurrency, giving coins to all families. Verification done by third party, maybe in US & staffed by volunteers. You win by replacing a dictator's currency with one for your people. Fight.
Yes those are problems but their not unconquerable. Bitcoin isn't scalable enough & these people have nothing. So a new coin needs to be airdropped. Anyone with cellphone can use it. After coin is on an exchange real money is involved. Financial incentives drive adoption.