You're not going to securely store anything in Venezuela until order and a functioning government system is restored. Venezuela is an entirely collapsed nation at this point. You're lucky to have any access to electricity to use Bitcoin and things are still getting worse there.
Safely store your Bitcoin. Gun to the head, you lose your Bitcoin and your life if you don't give up whatever access is needed.
You store your USD in your home (or wherever). Gun to the head, you lose your dollars and your life if you don't give it up.
Plausibly given the extreme murder going on there, you lose your life regardless if it becomes known you have any money, whether it's in USD or Bitcoin.