Sure, I like your car analogy. But someone who is antivax != they have covid. Assuming thusly would be but a witch hunt. In your scenario, someone who is vaccinated could also be driving around their body with a deadly and contagious disease. If they are out and about because they believe the vaccine bestows them immunity, their repeated and continued exposure to others increases the likelihood of them contracting the disease more so than an antivax who stays at home all the time.
So in this case, I am saying that you are conflating the source of covid with the population that does not want a vaccine. They are not one and the same. Yet you are conveniently blaming this pandemic on your imagined construct of people you classify as "antivax".