I think our recent medical successes (esp. antibiotics and vaccinations) have blinded us to a harsh truth - human life is fragile, there are lots of diseases that can easily kill us, and we're in a never-ending war to stop them from doing so.
Up until last century we often lost this battle at an early age. Even in rich, advanced nations a great many children never reached 5 years old because they succumbed to an infection of one kind or another. Several hundred years ago, the black death killed around 1/3 to 1/2 of all people alive in Europe.
Covid isn't new. It's old. This pandemic... this is what life used to be like before medical science rescued us. It's not fearmongering to say viruses pose an existential threat to our way of life. History shows us it's a frightening reality. If we want to get back to the security of life from three years ago (and stay there), we can't do it without medical science.
What we must grasp is that Covid could have been worse and we may well see a worse virus in our lifetimes. The technology that has enabled us to create a vaccination so quickly is not a threat, its a wonder of science, and the vaccinations should not he seen as a burden but as ongoing freedom from a way of living our ancestors were desperate to escape. We will need new vaccines against new diseases, with increasing frequency if ongoing deforestation continues in places like China.
The period from the 1940s to the 2010s was an exceptional period, being one in which agressive viral and bacterial diseases were very unlikely to kill most otherwise healthy people. But it was an exception, not the rule. If we want to keep that exceptional period going, we may need to embrace regular vaccines. It's a small price to pay, really, especially considering all the other things we put up with to maintain our way of living.