My daughter knew a woman who died after having the Astra Zeneca vaccine. It's incredibly sad but her family has urged everyone to get vaccinated. They recognise that what happened to her is extremely rare and that the risks of serious illness or death from Covid-19 are so much greater. There is always a risk of a reaction with any medicine which you have to weigh against the risk of the disease.
My sister-in-law refuses to be vaccinated even though her son, who is a doctor, has tried to persuade her. She is very religious, a vegan and practises kinesiology. Her husband, who has had the vaccine, says "Oh, she knows what is in it. She knows more about it than we do." I don't know how she has acquired this inside knowledge, as she is a retired graphic designer with no scientific knowledge. She is also blind, which must make it difficult to do social distancing.
Fortunately we never see them, partly because of restrictions but mainly because her husband, my husband's brother, is loathsome. She has a nicer personality than him, but so does everyone.
I feel that anti-vaxxers, unless they have a genuine medical reason, are selfish. If enough people refuse the vaccine, we won't achieve herd immunity. If we do, then anyone who hasn't had the vaccine will benefit from the actions of those who did have it. Either way, I think it is a selfish decision.
I am aware that it is a matter of choice. However, in some situations individual choice should be weighed against the common good. We are fighting a war against this disease. In WWII, what would have happened if people had said, "It's my decision and I don't like the dark, so I have decided to leave my curtains open during the black-out?"