"firstly: The group of anti vaccsers is in two groups the way I see it: Those whose children cannot be vaccinated for medical reasons such as immunosupression and so on. This group DESPERATELY need herd immunity from the community.
The other group are people who have made their decisions on largely Wakefield's work and despite the thousands of published papers demonstrating through longitudinal studies and metastudies that there is NO LINK with autism. Well, I suppose you could totally ignore the consensus of medical advice (but I wonder would they do that if they had cancer and the method of treatment was the consensus of medical opinion... would they say no and pick some other method over and above the expert advice?"
I think we have to add group 3:
Those who have no medical explanation but have seen more than one child in their family deteriorate suddenly after vaccine and suspect there may be an as yet unexplained genetic weakness in their family.
Perhaps even group 4:
Those who may understand the weakness of Dr Wakefield's methods but still worry that the potential effects of vaccines are insufficiently understood: the one does not exclude the other.