But no vaccine system or medecine or surgical procedure is goig to be 100% perfect. What we have to do is balance the different risks.
The risks of getting and dying from COVID, especially of you are over 60 are so high, most of us consider it worth risking being the 1 in 100,000, or 1 in a million that dies of a side effect.
When DH had a heart attack and emergency bypass surgery, the surgeon was quite straight forward about the risks that he would die during surgery, or shortly after. He also told him that his life expe1ctancy was under a year if he did not have it.
Life is a constant balancing of risks. The risk of driving a car to the shops and being killed or injured in a road accident, against the risk of being killed if you walk to the shops.
No one is ever going to produce a COVID vaccination that is risk free, but you have only to see how COVID deaths plummeted after the vaccination was introduced, to see how effective it was and how many lives it saved.
Whether intentional or not the unvaccined can take their stand, because so few of them will get COVID because so many of the rest of us are vaccinated