The vaccines were never intended to be a total cure for Covid that would end the chances of people ever catching it or spreading the viruses. Their effect was just to help the body fight the virus and lessen the risk of serious illness or death and for the majority of people that wanted the shots they've proven to be benefecial to a degree.
This has been the same situation for most vaccines over the years as none of them offered 100% immunity against specific diseases and viruses. They just helped the body to fight back stronger and defend itself against highly damaging germs and viruses.
Of course there can be potential side effects in some people but that's true for all drugs and medicines and not just Covid vaccines. I found it quite comical and hypocritical that gear users and bodybuilders got so heated and vocal on all the forums about vaccines but at the same taking concotions of UGL steroids, hormones, research peptides, stims, and all shorts of other potentially dangerous and unnecessary drugs
Whether you agree or disagree with the vaccines the one thing that can't be denied or disputed is that it was good for the world that they appeared and were made available globally coz we would still all be living with lockdowns and stay at home orders now if the vaccines weren't created and the world would've grinded to a halt with much more serious financial devastation than we are trying to recover from now in 2022..