If you want to play a fun game, switch "Apple", "Google", "Microsoft", "Samsung", etc with the names of toothpaste and deodorant brands. It pretty much shows these oddly passionate arguments for what they really are: weird tech company zero sum games repackaged as religious wars. So long as any of these companies have appreciable market share and are profitable they're winning.
If Apple goes out of business it'll be scrappy MS v.s. Giant Google. Or if Google goes out of business it'll be the underdog MS v.s. the 800lb Gorilla named Apple. Even AMD, who has really no business competing with Intel at this point, and also has to deal with the higher performance ARM chips manages to survive and sometimes be profitable. Ultimately none of it matters because history has shown that there's always going to be competition. And ultimately thats exactly the way we want it to be.
Not a single person here should hope Apple and MS go out of business. Otherwise we might find out how evil Google is willing to be. The same holds true for the others. 90% Apple market share wouldn't be particularly good, even for the most rabid Apple fans. iPhone 5SSSSS anyone?
Ultimately what I find the most amusing about the rhetoric, is that post iMac and pre iPod/iPhone, Mac users were just happy that Apple wasn't going to go out of business. Pre Android, Samsung users were happy they were buying quality air conditioners and TVs... People would do well to gain some perspective on this stuff.