When anti-vaccine folks talk about ethics and vaccines, they should focus on the ethical issues of pushing misinformation, of not protecting their kids, and starting outbreaks that get others sick.
chicken pox deaths
Your unvaccinated child is a risk to every person with cancer and any other condition that could affect their immune system.
Bobby Kennedy finally gets it right, admitting that chickenpox killed 100 people a year in the pre-vaccine era.
Overcoming cognitive dissonance explains a lot of anti-vaccine arguments.