If she hadn’t, disco would’ve finished them off (surprisingly near the end of the 60s, some of the Beatles’ cuts with horns tred near a disco boogie).
A Beatlesque band from the 1960s went on to become THE disco kings of the 1970s (BeeGees).
The Stones dabbled in disco (at a time they were struggling to remain relevant, now they no longer care).
Without the “group” dynamic, the individual Beatles didn’t feel as pressured to meet market expectations.
Sure Paul wrote some silly love songs in the 70s. But he’d already written Helter Skelter. The Beatles also had songs like “Run For Your Life” about killing your girl if she’s caught with another man.
What’s odd is that Paul probably had some rage (not necessarily violent, but anger all the same) as he went through his recent divorce but where was the personal song about “the blues”?
So, the band members each went their separate ways. Dabbling in projects with each other (even John and Paul together) but didn’t need to remain “contemporary” (where is the electronica album or the hip hop?).
Good points, but Yoko still tore them apart.