She refused to resign because she earns £81k annually for talking crap in Parliament. Nicola Sturgeon says she can't sack her and so Margaret stays on and on and on. Once these vile MP's get elected, they hang on by their teeth and refuse to ever go away because the pay is so good. They can break rules and get away with it, unlike the rest of us peasants.
⁣https://www.heraldscotland.com/news/18766687.margaret-ferrier-mp-still-keep-81k-job-refuses-resign/