Not constructive dismissal, because the goal isn't to place the burden on the employee. On whatever date, they will all be terminated without cause (layoff) if they choose not to relocate. There is no goal of forcing them to quit. Presumably, Apple has filed (or will file in due time) things like the WARN Act notification.
This is a PR move to hide the layoffs from the general public, but not from the law.
First, a massive amount of content is removed. You won't find a lot of popular, unencrypted content these days on usenet. It's all encrypted and obfuscated now to avoid the bots
Speaking of bots, I don't think you realize how much of this process is automated, or how wide of a net is being used. The media corporations all have enormous collected libraries of material. It gets posted constantly to all sorts of places. This includes public torrents, public usenet, YouTube, PornHub (yes, really, even for non-porn), Facebook, TikTok, Tumblr, GNUtella, DDL sites....
The list goes on and on. Each one gets scanned for millions of potentially infringing items, often daily. No actual people are doing those steps.
Now, throw in things like private torrents, encrypted usenet posts, invite-only DDL, listings that use '3' instead 'e' or those other character subscriptions..... These require actual humans to process. Humans that cost money, and a considerable amount of it. As a business, you have to show a return on investment. Fighting piracy, even at its theoretical best, doesn't increase revenues by a lot.
You mention revenue and breaking even, but you left out an important detail. Your time is free. They don't have to pay $10/month, they have to pay $10/month + $20/hour for someone to deal with it. And most pirates of that level will just find another method.