That's not how infection works. You don't clear it up by just stopping exposure. The patients in the article weren't constantly being exposed to lupus for decad

That's not how infection works. You don't clear it up by just stopping exposure. The patients in the article weren't constantly being exposed to lupus for decades. Putting them in a bubble would not have cleared up the infection. You are making wild guesses from a place of ignorance. If you want to learn more about the science of immunology the resources are out there to learn about it.