I can absolutely feel a kind of religious zeal and moral superiority from the pro-vax side. It will be hilariously stupid if long-term side effects turn out to be real.
“I am vaccinated. Look at this unvaccinated person. I am not like them. They are not like us. Lets go find more of them. Let’s throw stones at them. We’re not usually allowed to throw stones, but we can because they are bad. And I am now doing good, and it brings me satisfaction and purpose.”
Vaccinations, like masks, may have taken on a political identity. Therefore a persons decision to be vaccinated may be seen as others as a political statement.