You CAN'T solve the encrypted while scanning situation. AI is capable of misidentifying a naked baby picture as porn. Nobody will want to run a piece of software that might accidentally report them to the FBI to have their life ruined. So long as users have the ability to write and distribute software from regions outside your jurisdiction and users have the ability to install software of their choosing you can't stop people from communicating information you don't approve of. This is equally true of political discourse you and I both agree ought to be freely disseminated as is of evil material you and I would both desire to ban.

Maximal crazy is implementing 1984 in order to pretend to stop child abuse while it continues to go on all around us.