Quoting FeliciaAnn:" My daughter is HF ASD and was ahead developmentally until she got a flu shot at 18m. I'm not saying ... [snip!] ... go to school because DD1 is obviously recovering from a vaccine injury. http://gaia-health.com/gaia-blog/2012-12-04/us-doj/"
Each parent has the right to choose for their own children. I don't agree with you, but your kids aren't any of my business.
I vaccinate my kids because i don't want them dying of measles. The small unproven chance of it causing some sort of issue wasn't enough to stop me from vaccinating them. All 3 of my boys have had all of their shots so far and are average as far as intelligence goes.
(Off topic, but it sounds horrible to refer to my kids brain power as average and it sounds like bragging to say above average.