> As an analogy: I would have almost certainly died without antibiotics during the years that I lived without a diagnosis. Now I am able to combat infection without antibiotics, but I simply didn't have that knowledge for most of my life.

That's completely the opposite of a vaccine. Antibiotics are heavy-handed cures that quickly make a problem go away while potentially causing more problems for you and everyone else down the line. Fighting infections without antibiotics is backed by sound science.