Repeated bad driving doesn't lead to the development of new strains of antibiotic-resistant bad drivers who can infect and quite possibly kill unknowing good drivers.
Very good, although we were originally speaking of crimes, not anitbodies. So...think about what you are saying in the context of all human contact, not just sex. In the name of public health, you are making an argument for the regulation and criminalization of all interactions that might spread disease.