@abasio I am mostly with you, and throwing blame 100% on such people seems the obvious and easy decision. But I think things are a bit more complicated. Firstly, in some countries in Europe (or in Greece at least), even though the governments were very late to take precautionary measures in the beginning of the pandemic, after much harm had been done and the vaccines were out, they were trying to force the people do the vaccines. This made people suspicious and reactive. There was, and still is, a significant number of people that did the vaccine but still feel repulsion that they were forced to do it in order to keep their jobs.
Secondly, the vaccines for Covid were developed urgently and the whole procedure took much less time than it normally does to develop a vaccine. If anyone raised a doubt, they were called conspiracy theorists, idiots, and so on. So, in Greece, instead of encouraging people to do the vaccine for the public welfare, the government's way of dealing with the problem was something like "shut up and do the vaccines otherwise you are anti-scientific idiots and you will lose your jobs."
Thirdly, there were some reasonable concerns. AstraZeneca, for instance, has infamously been involved in several scandals, which has tarnished its reputation. And, if I remember correctly, some countries suspended the AstraZeneca Covid vaccine after some reported deaths related to it. And regarding the widely used Pfizer vaccine, so far as I know this is a completely new type of vaccine, so I suppose it is not completely unreasonable if someone wants to wait a few years to be convinced that it has no long-term negative health effects. Finally, poor practices have indeed been reported during Pfizer's pivotal trial of the vaccine. See this paper for instance, from the very respected and reliable British Medical Journal. https://www.bmj.com/content/375/bmj.n2635
So, I think it is unfair to point as idiots or extreme right-wing fascists etc. all the skeptics of the Covid vaccines (sadly, governments and media manipulated people to adopt such an attitude). Of course, those who refuse to use face-masks are idiots indeed. And the worst are the real fascists who deploy the anti-vaccine hysteria in order to attract voters.
Anyway these are my thoughts. No intention to give support to the person you criticised, since I do not know him. Either extreme is not good.