The key here, I think, is the first line: "I was never besotted with Morrissey." Stubbs has never had any liking or feeling for the subject at all. He even misreads the Smiths at their height - never mind Morrissey's solo work.
Hence he castigates Morrissey at the end of the Smiths "as an (sic) blousey Northerner trying to bring the values of Alan Bennett into the arena of rock and pop." Which actually seems like a brilliant thing to do.
Funny how Stubbs trots out the "all reggae is vile" line which he has long admitted to being a joke. Then he criticises Girlfriend In A Coma seemingly without knowing it's based on Morrissey's favourite reggae song Young, Gifted and Black.
He also references the National Front Disco without mentioning it was inspired by the left-leaning editor of Granta Bill Buford's book.
Yes, he hated the Diana Ross output of the 80s, but loved the Supremes in the 60s, etc, etc. And so it goes on. All woolly logic and selective evidence. Like labelling theory in action.
Ironically, of course, the very idea that you should "ditch your friends" because of the art or artist they like is entirely fascistic.