Measles coming back might finally cow those susceptible to antivaxxer propaganda. But it will have to be widespread. People will have to die horrifically before we beat back antivaxxers to a small percentage of the population once again.
People are too fucking stupid to just get their vaccines unless there is a stick. Carrots don't work well enough, apparently. Over a disease once considered eliminated, too. I'm salty that people can't do literally anything for the greater good one a year, or even once every 10 years.
Even if they do get it, they won't change their stance. They'll just find some other boogeyman to blame it on like the government poisoning the water and air or something