I have inoculated with all other common vaccines previously. The point is, those vaccines prevent infection. The general breakthrough infections are as low as 3--5%, even after many years of inoculation.
For example, my ex-partner had active Hep-B virus, but my doctor did a blood test for me and said I had nothing to worry about (e.g., intimate activities with her), as my antibody level is still very high after 10 years of Hep-B vaccination.
In contrast, none of the the current SARS-CoV "vaccines" qualify as a Vaccine (not the new CDC definition, but the one says "provide immunity").
I was living in Asia during the 2003 SARS-1 outbreak, personally been through that pandemic. After ~20 years of research, there's still no safe vaccine against SARS-1, they even failed the animal trials due to ADE (antibody dependent enhancement).
Now I just want to wait until long term study is properly done, and data is released transparently. I believe that's the logic of most "unvaccinated", including some doctors and nurses.
By the way, Pfizer CEO just said they need an updated vaccine to fight against Omicron. I would say it's Immunology 101, as virus mutates, neither the old vaccine nor natural immunity prevent infections from the new variants, let alone the vaccines is only targeted for the Spike protein that are highly mutable.
In any case, regardless of your vaccine status, no one is superior to anyone else, so wear a mask properly and stay safe!