So what happened? Red blooded American Males stopped going to Studio 54, but previously they were wearing platform shoes? They just suddenly discovered that dancing and being fashion-lame was suddenly too close to being gay, too?
And the white folks who loved Motown kept loving it but started hating on disco because it was created by blacks? Sorry that reminds me of the declaration that Trump voters rediscovered their racism - after voting for Obama twice.
This is entirely ludicrous. Maybe Disco Sucks because people who didn't like the music really didn't like the fact that by the late 1970s it completely dominated top 40 radio, and in an era with far fewer choices for what to listen to.
And how exactly did Urban Cowboy shift the culture? A few hundred mechanical bulls in bars + a few country cross-over hits is comparable to the dozens and dozens of acts that are still working the oldies circuit today?
Let's just say that everything you perceived about it is totally accurate - does it explain Mary Wilson's album sinking like a stone? I would say absolutely not, because the far more likely explanation is that Mary Wilson wasn't much of a name, and she didn't get major promo bucks, and Diana Ross had an album out at the same time. What the writer did was tack on a hyper-woke 2021 perspective, because his audience would enjoy it and nod their heads.