Do you honestly think the world can operate if people refuse to accept that other people are experts and you often have to trust the experts. Experts design planes, cars, buildings, amusement rides and yes, medical procedures. Are they all 100% safe, no, there is always an element of risk involved in life despite the best efforts of experts to design safe products.
Your expectation that vaccines be 100% safe is ludacris and it shows you have very little experience in the real world. You probably live with your parents and have never had a sexual partner because it's safe to be thst way. If you want to live your life wrapped in cotton wool, too scared to put your faith in experts that have designed safe products, you do that. But the rest of the world simply cannot live life without facing these risks.