I think a major point your wife and others don't understand is that being vaccinated doesn't mean you can't get a disease. But most diseases will be less deadly

I think a major point your wife and others don't understand is that being vaccinated doesn't mean you can't get a disease. But most diseases will be less deadly and harmfull So the statistics most anti-vaxxers look up are about disease count while you should look at how many died. And about mercury: sometimes traces can be found but are way too low to be harmfull. There is a much higher dose of mercury in some fish so that's why pregnant mothers and small kids should not eat those.