Stupid bitch Truss only gave him the job a month ago, she's more than complicit in the recent catastrophic governance. Kwarteng is a crook, but Truss knew that when she gave him the job, and now she's firing him as a scapegoat to try and save her own arse. Her whole cabinet is a joke - threw out the baby with the bath water when she took charge and replaced them all with her incompetent mates.
I wouldn't think anyone with any sense would want the position under her leadership. It's be like climbing back aboard the Titanic as it was going down.