I’m not going to act like CSAM reports will not go down just because I support encryption, they will go down and it’s unfortunate. Reports are helpful. Reports can be lifesaving.
Encrypted messages can also be lifesaving. I still support encryption and privacy rights.
Outside of the private messaging on meta there are plenty of child safety issues that are still urgent to address.
Example:
https://www.wsj.com/tech/meta-facebook-instagram-pedophiles-enforcement-struggles-dceb3548