Many autoimmune diseases don't appear to be caused by immune memory, at least alone. There is evidence for cyclic inflammation by the innate immune system and

Many autoimmune diseases don't appear to be caused by immune memory, at least alone. There is evidence for cyclic inflammation by the innate immune system and also latent inflammation from gut bacteria and their outputs. What you are describing (bone marrow radiation) has been used to treat Multiple Sclerosis. But diets (which radically change gut bacteria) have also been used to treat MS. So it's complicated, and it's possible for what is currently considered a single disease to be a common symptomatology for different root causes.