Wouldn’t that mean that infections are also a major source, as more people are infected by virus than are vaccinated by against them? Most vaccines excluding the new MRNA vaccines are just versions of the original virus, dead or weakened.
No, because the argument for vaccines causing autoimmune disorders is largely not about live viral vaccines (or at least not them on their own) but rather vaccines that contain adjuvants (and not all do). The idea is that the adjuvants result in the immune system targeting many proteins (not just the proteins ones in the vaccine).
My (pharmacy student) daughter has a plausible theory about that.
Most (all?) vaccines have something in them to make the immune system recognize that there's something there to fight. (It might me called an "adjuvant" or something like that - I'm not the pharmacy student, so I'm probably getting the word wrong.) It's included in the vaccine that you get from the manufacturer.
That was fine, when you only had a very few vaccines to get. But now kids are supposed to get something like 18 different vaccines. Well, doctors know that the mom isn't going to bring their kid in 18 different times to get vaccinated. So they give the kid five different vaccines at a visit.
So the kid gets five doses of the adjuvant (or whatever it's called) at once.
For some kids, that's enough to make their immune system hyperactive. And behold, they develop autoimmune diseases.
As I said, this is a plausible theory. It's not proven. But it makes some sense, and it explains what changed.
OP’s comment is “just asking questions” couched in a folksy, disarming manner, intended to seed doubt about adjuvants when the word they were feigning ignorance of is “antibodies.” This is slightly more sophisticated than normal anti-vax comments, but is too cute by half.
I too have had to learn about adjuvants recently, straight up because of a new (new to me, anyway) wave of anti-vax sentiment specifically framing adjuvants as sinister. The last six dozen ingredients/compounds deemed threatening have not found widespread traction; this is the latest attempt.
