[zepto]

I’ve read the article. It changes nothing.

I agree that it could be used to detect image collections (and only image collections) that are not porn, that users upload to iCloud Photo Library.

That is the only established abuse case. Apple has categorically denied that they will comply with it, just as they refused to help the FBI in the San Bernardino case.

Even if they do end up complying in China because China passed a law, authoritarianism in China is a red herring. This mechanism is of no consequence to the Chinese government.

All of has absolutely nothing to do with your claim that ‘iMessage is next’ and the article doesn’t support your claim.