My son is fully vaccinated. He has yet to require antibiotics. I suspect he has had 2 ear infections. I treated both with Motrin for the pain and rest and he was back to normal within a week. What a ridiculous assumption.
OP, I think it was probably just a knee-jerk reaction making sure her kiddo was safe. It seems like she's not really bothered by your decision not to vax but just cautious.