Yes it is time they pay. They have known for years and covered it up - specifically about the MMR.

I have a colleague that had quads. All 4 of his kids were fine until the MMR. 3 came through it fine from what we can tell, but one of his sons became autistic. Like you, nothing was going to convince him otherwise. A parent knows when something happens to their once normal child and then someone turns the light off. My colleague also took a great deal of heat about it from within the medical community over the years because of his stance. So did I, so I can relate.

He always told me that he felt blessed in the fact that he personally had the resources to get his son excellent care that was out of reach for most parents. He was a self made man that made some really good investments - so he had the money to pursue what ever therapies they thought would help. His son went from being non-verbal to actually being pretty high function. But it was a tough battle and the cost was insane.