It's alot worse than your statements suggest. That ingrained ignorance affects all aspects of their lives, as well as everyone else's.
The are totally lacking or seriously deficient in all the sciences.
They believe climate should be constant with no extremes, bluebirds and flowers year-round.They are unable to grasp that the only planet with a constant climate is a dead planet.
The functional idiots all vote.
They elect other idiots like themselves.
Over and over.
Individual human being are each unique; responding to illnesses and vaccines, allergies and cancinogens differently. There is no medication treatment or therapy that wiil affect them all the same; or even predictably.
Those people may, if hammered enough times, realize that. What they may never accept is the rational judgement that because 0.50% of the genetic deficients react badly to a vaccine, the other 99.50% of humanity should not be denied its benefits.
Remember Star Wars? It was 'only' 80% effective, so everyone loses...
I would challenge you on this terminology. Someone whose genetic code reacts badly to a vaccine is not necessarily "genetically deficient," just "genetically different."
Those same genes might be an advantage in other circumstances. As carrying the gene for sickle-cell anemia apparently provides significant resistance to malaria.