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.