Just my 2c about blacklists: As soon as they are a reality bitcoin will be dead.
Money needs to be fungible, everything else is nonsense.
Even if money (BTC, etc.) is stolen at gunpoint? Blacklisting stolen money is a marvelous idea.
To prepare for a potential life-threatening situation, one could have some money readily available but more not readily available. The thief wants your fungible money; killing you is not their top priority. Accessing your safe money should put your assailant at risk of capture.