Herd immunity never existed. The numbers show that. But damned if pharma is going to accept that.
As for do vaccines work, yes and no. Before discovering that my son had allergies to vaccine ingredients (no not the mercury or aluminum though those probably didn't help) he was fully vaccinated and received the chicken pox series twice. I was fully vaccinated as a child and received the required MMR boosters when I went to college.
My son got chicken pox when he was 12. He got shingles when he was 17. This year he got measles. I am grateful that the vaccine made it a mild case of measles. I also got measles. And then I got encephalitis. So vaccines work and they don't.
But most anti vaxxers I know would be willing to vaccinate if 1) vaccines would stop being rushed to market, 2) all vaccines underwent full double blind placebo testing, and 3) vaccine manufacturers were once again liable for any damage their vaccine caused.
As for Pan, families of kids with proven vaccine reactions are leaving the state already. And they are losing doctors. Several specialists have left because of the "investigation and review" of any physician that writes more than 4 exemptions in their career. According to one specialist it costs upwards of $100,000 for them to defend themselves each time.
Also, nurses and doctors have reported that they have been instructed to automatically give the flu vaccine to anyone that comes in unless the person can prove they've received it. If you are not concious then you are SOL and will get it. They are also to push the other vaccines if they have reason to believe the person does not have them. And they are not really asking. They bring the shot(s) in to administer with everything else they are doing. If you don't ask what's going on and say no, you get them.