Going back to Nadiya, she really is the mirror that shows Jack up for what she is. I follow her on Instagram and she is very open about her problems with anxiety etc without making any excuses. Her husband openly adores her (they had an arranged religious marriage in Bangladesh which wasn't legal here as they are both British so a couple of years ago they went off to the registrar and married again, "this time for love"), gorgeous children with age-appropriate behaviour and likes but who have been taught to cook - and do so for the family by choice - and who take part in the weekly house cleaning. She is close to her siblings and parents and her sisters often interact with her on SM. She has been open about how lockdown has affected her mentally, particularly due to being unable to see her family as they come from large families, the in-laws have large families, there are several elderly and vulnerable people in the network, and so on so they have chosen to be rigid about bubbles.
Right from the start of GBBO, she was open about how her heritage influenced her baking due to her mother's cooking. She has also spoken about colourism in the Asian community as well as more general racism and Islamophobia. Her anxiety is well documented.
She has published gorgeous cook books with food that has actually worked and which looks lush, had several television series which have also gone down well in the USA, has partnerships with brands which are both food-related and not (such as Swarovski), and is generally a happy, likeable and genuine person with both personal and professional social media where she never needs to delete anything due to a chaos. Oh, and she has happy hens and a family cat too.
Compare and contrast that to Jack, who lives a lie of performance poverty, lies about her history, has had a series of partners, treats her son appallingly, can't cook for [sausage] toffee, is dreadful on television and social media, has fraught and weird relationships with her siblings and parents, playacts with her heritage, is cruel to various pets by neglect and more actively, plays fast and loose with Covid-19 regulations, jumps on every [delayed] bandwagon, has a ghastly presentation, doesn't know who she is, and generally is a total pillock and cunt.
Sorry about the long essay, but Jack would do well to compare and contrast herself with Nadiya in all aspects of her life