Here is another point... a watch is NOT a Mac. An Apple TV is also NOT a Mac; it would be seriously bizarre to call the operating systems for those devices "macOS". Surely you must realize this, yeah??
How about the fact that they are COMPLETELY different operating systems?? Like OS X is a few gb, while watchOS is a few mb.
But sure... continue thinking that Apple collectively lost their damn minds & are going to call them the exact same name.
Lol, that's like "guessing" that they are going to change the name of the MacBook Pro, the iPad Air, & the Apple Watch all to "MacThing" & pray that it doesn't get to confusing.
Look, I get that it's a natural reaction to defend your position if it's being attacked, but in this case- trust me... the "guess" was just a bad one. It's indefensible.
Again I say:
Apple is NOT taking the four distinct operating systems of iOS, OS X, tvOS, and watchOS and changing the names of all of them simultaneously to "macOS". That idea is laughable & has nothing remotely to do with what this rumor states.
The rumor is: OS X may be renamed macOS. That's it. Nothing more - nothing less.