I'm sure that the same posters who will dismiss any anti-trust and monopolistic practices by Apple, will be all for hammering Facebook. There will be hypocrisy abound in this thread, I'm certain.
Come on… Apple does purchase small companies from time to time, and does a lot of Sherlocking, but when was the last time they gobbled up a direct competitor? Even a small-ish one. Please name one. Come on, I'm waiting…
And no, the Apple-NeXT reverse-acquisition-sold-as-a-merger doesn't really count… Apple was on the throes of death back then, and NeXT, a technological powerhouse as it might have been since its inception and until its very subsuming as an independent entity, was, at least commercially speaking, a one-trick-pony that probably couldn't stand on its own in the market if something truly better came along (or if, say, Microsoft decided to “embrace-and-extend” its line of business). It's true that the merger hastened the death of WebObjects (Dell execs couldn't bear the thought of running their store on what would become Apple-branded software, for one!), but their continuity as a an independent company might also be untenable in the long run regardless.
And in that lens, the subsequent Power Computing Corp. purchase wasn't much of a power move, either; for all its technical prowess and Mac OS-compatible hardware firsts, with the swarm of new, sexy and affordable first-party Mac hardware Apple would soon unleash on consumers, that company would be dead anyway in a year or two, even if it had access to a Mac OS license still. Also, the Mac OS clone ecosystem wasn't big or mission-critical enough back then for an anti-trust suit to go anywhere (it's not as if that was Microsoft deciding to close down Windows and buy, say, HP or Compaq to make their own vertically-integrated computers and tell the other OEMs to stuff it).
The same goes for Beats; Apple didn't even have a music streaming service back then, Beats didn't sell perpetually-licensed music tracks, and their combined audio hardware barely overlapped (only now are seeing
some action in that camp, with the AirPods Max…). And even then, Beats kept some degree of independence, and whatever remains of it still plays (hah!) very well with the PC and Android camps. If there's something which you can't fault Apple for is anti-consumer monopolistic practices in the music market. Quasi-monopolistic leverage in licensing negotiations at one point or another? Sure. Anti-consumer? Nope. And you cannot even fault them that much for devaluing the artists' work; that sad distinction should be reserved mainly for Spotify (they weren't the first nor the last to attempt it, but were the first to do so successfully).
Then there's the whole iBooks Store lawsuit thing. That one ended up being not beneficial at all for consumers, it seems.