Fair enough.
With regard to my family history, and I'm talking my small sample study of around 100 people, we have all been fully vaccinated, and there are none of us with any of the health issues possibly associated with vaccination.
I'd also like to point out that there are 'cancer clusters' sometimes associated with geographical areas. Also note the fact that non breast fed babies are more likely to suffer from asthma, and possibly take into account that there could be a link between parents who choose not to breast feed but choose to vaccinate. I see a logical connection there because I believe there are similar motivations behind breast feeding and not vaccinating.
It's also possible that they had a greater response to their survey from parents who are anti vaccination simply due to the fact people who are against vaccination in general seem to me to be more vocal.
Also, the people with kids who were vaccinated were probably too busy chasing their hypo kids to do a survey.