> in no case does copyright protection for an original work of authorship extend to any idea, procedure, process, system, method of operation, concept, principle, or discovery

Just because another app works similar to another app does not mean it's infringing.

Just because a video has a similar content ID signature to another video doesn’t mean it’s infringing either. My point is that, for better or for worse, platforms already “do it for you” if you’re a record label—there’s no reason why the App Store couldn’t do something similar for app developers.

YouTube presumably does what they do because they'd otherwise be sued by very large companies with lots of lawyers and money. (Whether or not those suits had any merit, they still take resources and are an effective threat.)

Apple is not in the same position: the businesses who would sue them to try to force them to enforce their copyright are much much smaller than it (and are additionally very reliant on Apple).

Youtube does an incredibly poor kids b at it and screws over content creators legitimately and legally using something under fair use