Yoko Ono: the Woman in the Room

As I continue to watch the Peter Jackson recompilation of the Beatles' Let It Be sessions from January 1969...which he renamed Get Back and is showing on the Disney+ channel...I am puzzled by the so-called controversy and division that Yoko Ono, then John Lennon's girlfriend and soon-to-be wife, was causing: she was supposedly breaking up the band if you believe the numerous accounts and analyses.  Yet I just see her quietly sitting next to John, being supportive of him as well as respectful of the other Beatles.  She's not making any kind of waves or acting like the kind of diva you would expect to see on any of these nauseating reality series that nowadays plague the TV dial.  Often she's just reading a book or magazine. I did see her pat John's back and smile at him, and being pleasant and encouraging toward his bandmates....OH MY GOD SHE'S BREAKING UP THE BEATLES! And even though the other Beatles have had their own girlfriends in the studio before, Yoko's presence there at John's behest has been regarded as violating some kind of sacred "men only" arbitrary protocol in the recording studio that the Beatles maintained (when it was convenient for them, that is).  I see nothing in any of this but extreme male chauvinism, and without going into details in order to protect another individual, I am personally keenly aware of the nasty, irrational and patronizing behavior that men can exhibit when their expected all-male group finds itself graced with the presence of just one woman...regardless of her demeanor or behavior. And, sadly, scapegoating her as being divisive instead of them taking responsibility for their own sorry-ass behavior toward each other is one of the results.  Yoko, you're not the only woman who has had to go through this, and I'm afraid it's just going to continue...