Morrissey's manager has accused The Simpsons of employing "harshly hateful tactics" after it mocked the singer in its latest episode.
The long-running cartoon featured Benedict Cumberbatch voicing a thinly disguised parody of the former Smiths frontman.
In the episode Panic On The Streets Of Springfield - a reference to a 1986 Smiths song - Lisa was accompanied by an imaginary friend named Quilloughby, a sullen vegan singer who has become overweight and anti-immigrant.
Peter Katsis, Morrissey's manager, responded with a post on the star's Facebook page and said The Simpsons' writing had gone downhill.
The comedy has "degenerated to trying to capitalise on cheap controversy and expounding on vicious rumours", Katsis wrote.
"But when a show stoops so low to use harshly hateful tactics like showing the Morrissey character with his belly hanging out of his shirt (when he has never looked like that at any point in his career) makes you wonder who the real hurtful, racist group is here," he said.
"Even worse - calling the Morrissey character out for being a racist, without pointing out any specific instances, offers nothing. It only serves to insult the artist.
"They should take that mirror and hold it up to themselves."
He said Simpsons star Hank Azaria had recently apologised over the character of Apu after the show was accused of making the Indian shopkeeper a racist stereotype, and Katsis defended Morrissey, 61, against some of the jibes in the latest episode.
"Morrissey has never made a 'cash grab', hasn't sued any people for their attacks, has never stopped performing great shows, and is still a serious vegan and strong supporter for animal rights," he said.
Morrissey, a revered figure for many, has alienated some fans with his outspoken and controversial views.
He once called halal meat "evil" and showed support for the far-right For Britain party during an appearance on Jimmy Fallon's TV show in 2019.
Morrissey denies being a racist.
Before the episode aired, Simpsons writer Tim Long said Morrissey, Joy Division's Ian Curtis and The Cure's Robert Smith were among the inspirations for Quilloughby.
Australian Associated Press