I don't disagree with your general view, but all aspects of human biology have a certain level of uncertainty associated with them. Nobody expects guarantees with medications, surgical procedures, treatments for illnesses etc. Being skeptical is valuable against dogmatism, but we're not asserting things with absolute certainty here. We do have to recognize the difference and respect the outcome of the scientific process - which is what produced these vaccines. If you say the majority of scientists can be wrong, you have to be more specific. Do you mean colloquially wrong as in making an error in day to day work, or do you mean being collectively wrong about immunology since 1798 and we should reject things that we built on those discoveries?
If there is any risk here, I'd say the risk here is our own inability in not being able to describe human biology in detail. The vague statement "the human body can heal itself" sounds warm and fuzzy, and most people agree with it, but when transformed into "injecting these set of molecules into your blood will trigger complex interactions with independent internal biological processes and cause the body to produce clones of proteins with increasing avidity towards the original molecules which also trigger further complex biological processes [...]" - can get you into trouble sometimes if you treat it as absolute truth.
If there is any risk here, I'd say the risk here is our own inability in not being able to describe human biology in detail. The vague statement "the human body can heal itself" sounds warm and fuzzy, and most people agree with it, but when transformed into "injecting these set of molecules into your blood will trigger complex interactions with independent internal biological processes and cause the body to produce clones of proteins with increasing avidity towards the original molecules which also trigger further complex biological processes [...]" - can get you into trouble sometimes if you treat it as absolute truth.