https://www.cbr.com/the-conners-loses-cast-member/

A main character on The Conners will not be featured in the upcoming sixth season.

The Conners Cast Exit Means Season 6 Can No Longer Fix The Show's Biggest Roseanne Crime (https://screenrant.com/conners-season-6-jayden-rey-exit-dj-problem/)

The latest original cast departure ahead of The Conners season 6 means that it won't be able to fix its biggest crime against Roseanne.

Rotfl.
So Roseanne creates a black character and introduce her as member of one of the most iconic family in american sitcoms.
Roseanne is fired for being racist (that infamous tweet was awful, I admit).
The racism-ridden room of authors creates no more than three episodes in 5 seasons where Mary has a few lines of dialogues.
The racism-ridden show doesn't want anymore Mary.