Actually no one can steal cryptos without the owners who made mistakes whike storing their private keys. So the actual owner is responsible if he ever lose his crypto assets.
Son, if tomorrow somebody kidnaps or rapes your child, you, like a keyholder of your child's freedom, will be responsible because you haven't cared enough, right?
When criminal activity is done, it can not be justified just by the mistakes of the victims.
Human beings are weak creatures. We all make mistakes and we all pay the price for it in one way or another, but this still doesn't mean that somebody who took profit from our mistakes through criminal activity has the right to avoid punishment and continue to freely moves to the next victim. It will never be accepted and tolerated by the human community.
Freedom with responsibility strongly implies ethics of justice.
It will never be real freedom (with responsibility) and real decentralization under these circumstances.