1.
Treat Robocall offenders like pedophiles. Both outside and inside of prison.
Problem #1 solved.
2. Auto-transfer any incoming calls not in my contact list to voicemail. Apple?
2. Auto-transfer any incoming calls not in my contact list to voicemail. Apple?
If you mean getting punishment that wasn't meted out to them by a judge in prison by other inmates, this is not really how law is supposed to work; you are entitled to the punishment given to you by a judge and no more.
If you think penalties should be increased (maybe they should) then you should work logically and level-headedly within the law and lobby your representatives to increase it.
It would be better if society, especially one with so much money and resources, would find a way help the really mentally ill before they commit horrific acts or all types, instead of using primitive, childish, and retrogressive ideas of evil and good to justify revenge-based emotional acts that aren't grounded in logic. This honestly doesn't make you much better than most criminals.
Your way is really little better/civilized than vigilante justice.