There is substantial evidence to say that the Vaccine helps reduce symptoms, even if it doesn't stop you getting it. Though many of my relatives have not had covid before, none of them had serious symptoms or required hospitalization. It may not be a silver bullet, but there is no evidence that it harms people. Hospitals are not overrun with covid sufferers at present. Whilst in China, now they have opened up lots of people are in trouble. Their vaccine was very poor.