That vaccines never did anything to prevent transmission is a pretty ridiculous contention for the initial wave.
That vaccines posed more of a danger to most of the population compared to COVID-19 itself is also ridiculous. The US had the largest vaccination drive in its history in early 2021, peaking at 3.5 million jabs per day in April. Excess death dropped dramatically throughout the rollout and kept falling past mid-2021.
Studies cannot show if something was the right course of action. This isn't something that can be accounted for by some peer-reviewed research paper.
The fact of the matter is, the response to covid was a massive disaster that did far more harm than good. And that is an absolute fact and one that will take a long time for people to swallow. It's hard to realize you literally wasted several years of your life for absolutely nothing at all.