Lyrically, this isn't great, continuing the descent into paranoid 'alternative facts' that started on 'Spent the Day in Bed', and some of the rhymes just seem random and clumsy ('Because of my fleece, because of my niece' is just downright embarrassing). What saves the song and stops it from becoming unbearable, is that it is sung so lightly, and set over such a jaunty little tune. It's a great contrast, and stops it feeling like the Trumpian/David Ike rant that it is.
By the way - what are people's reading of the lyrics at the end?:
The dead are dead
Ice cold and hard
To where they can't be overcharged
They have no breath
They have no eyes
At least they won't be going twice
Ignoring the awkward grammar of the third line, I had trouble initially wondering what this had to do with the rest of the song. Now I'm thinking maybe he's talking about himself - having already 'died' socially and commercially from having shared his views, and then being ostracised and cancelled by so many people, he has no further fear of what people say about him. Or am I completely misreading this?
I disagree about the fleece/niece rhyme.
'Fleece' makes sense in the context of Canada Goose, it's in line with the imagery of an animal being skinned. I took it as his way of saying there are many things one can be condemned ('skinned alive') for - one's opinions ('because of my views') or the "truth" (whatever that may be...); 'fleece' could stand for his clothes or outer appearance, which is often ridiculed, and his 'niece' is obviously his nephew, who gets a lot of flack, which is also reflected on Morrissey.
As for the last part of the lyrics - I'm none the wiser, really. I thought it sounds like he's envying the dead here, because they're already done with life and don't have to deal with the type of stuff he himself gets thrown at him anymore. A bit like Munich Air Disaster 1958 - they can't hurt them because they're all safely dead...
I like your interpretation though.