Questioning superstition is important. What you are offended by is identical to what you would expect to experience were you to suggest that you want to avoid

Questioning superstition is important. What you are offended by is identical to what you would expect to experience were you to suggest that you want to avoid vaccines for 'whatever reason'. Leaving scientifically unsupported opinions unchallenged is irresponsible and I at least certainly don't feel like I've overstepped my bounds by challenging such an uninformed belief.