The level of delusion round here is unbelievable. What will it take for you to realise that Morrissey has lost a staggering number of fans in the last two years? At least half, probably two thirds. Things were going pretty well for him up to this point. He was a well known name, a legendary icon, new generations were discovering his stuff, radio was playing his new singles, his 2018 UK arena tour was the biggest tour he'd ever done, solo or Smiths. And now it's all gone massively tits up, and we all know exactly why. This has not happened to any of the other artists you mention who continue their careers as original, legendary artists respected by tens of thousands, and able to continue their careers on the same level into old age.
Morrissey has become a figure of hate. A man who's public image is now that of a racist, far-right extremist. It shouldn't be - I know and you know that this doesn't reflect who he truly is - but you can't blame the wider world for jumping to this conclusion when evidence of his unambiguous support for far-right politics is sitting there on his own personal website. Wake up.