Your line is the maybe pennies of electricity over the lifetime of the phone? Weird. I can totally understand your line being the CSAM scanning itself but you seem to be fine with the exact same scanning being done with even more opaqueness and less transparency because it's done server side.

I also get the slippery slope thing since you don't really have any control over what your device does but that's been true since forever. Running some scan() method and posting matches to a URL is something that literally could have been done in the last 10 years. It's not like this tech is magically enabling something that wasn't possible before.

And I do get the using your resources argument but iPhones have had integrated DRM since forever.

The thing I don't get is why now? Surely you should have left ages ago?