Vaccination is very easy to imagine in the form of a classic story: there is a very wide river teeming with aggressive crocodiles. People need to cross this river from bank to bank. You can try to swim very quickly across the river - there is a different from 0 probability that the crocodiles will not have time to react to you.
But others offered to quickly build a bridge, even if in a hurry, even without a 100% guarantee that no one will fall from it. But it is guaranteed that 99% will surely cross the river safely. What do you choose - try to quickly cross the river every time, or go over the bridge? Also with vaccination - you can not get vaccinated and risk guaranteed with a high probability, but you can get vaccinated and get very limited risks with a low probability
Anti-vaxxers are having a field day with this pandemic. They have successfully convinced hundreds of millions around the world not to take vaccine, by spreading rumors of side effects. Even developed countries like the United States are reporting 2,000+ deaths per day now (and according to various sources, almost all of the deaths are among the unvaccinated people). During the initial phases it was OK to refuse vaccination, because the clinical trials were not complete. But now, billions of doses have been administered and very few people have reported side effects. No justification exists to refuse vaccination now.
I will say this - there are enough fools everywhere. Fools have always been, fools will always be!
But there is a slight difference. Being a fool and denying computer technology, for example, will only lead to technological backwardness. But it will not lead to death!
Denial of the need for vaccinations, and refusal of vaccinations, will actually become some kind of "natural selection", because the unvaccinated have the maximum mortality rate, and the unvaccinated who have had the illness and who have received complications will find themselves on the "outskirts" of a full life, and are likely to become, in a sense, "outcasts". Well, for the rest of the population, not vaccinated, will become a "walking advertisement" of the statement "it is necessary to be vaccinated!" It may sound a little harsh, but this is the reality ...