So what is your point then?
Is it that Apple's punch in the gut here, while bad/wrong, is beyond criticism or outage because if you use Google, you'll get a slap to the face?
Or is it that Apple actually isn't doing anything wrong simply because there is some roughly analogous behavior in your view by other companies?
My point is that Google and Microsoft have been scanning everything in your account (including data like emails and the files you mirror to their cloud drive) and have been doing so for the past decade.
Apple has announced a plan to scan only those photos you upload to iCloud Photos, and nothing else.
Further, Apple's scans will occur on device where a single false positive cannot be misused to incriminate you by anyone who can get a subpoena, because Apple's servers won't hold any data showing something happened.
Google and Microsoft's systems are much more invasive and much less private.