> where the personal data that does get out of the iPhone/ipad/Mac is encrypted with something Secure Enclave on processor, and “even Apple can’t read it”..

there already is technology for this, which is Confidential Computing which is implemented on Nvidia etc.

it requires transparency to audit it properly and if there's an exploit which weakens it then the security guarantees fall apart

but in terms of commercial viability, it's the most promising way to tackle this and it seems like Apple is already pushing for it with their Private Cloud Compute