While I agree with the underlying sentiment I wouldn't condone any violence. Focus that frustration into fighting the garbage that is being posted. Questing the fallacies and logic and the biases that are pervasive. Make those that chose to not vaccinate their children question their decision. Help those kids get information so that they can make their own life saving choices. Didn't upvote the post because of the title. I get the frustration. Changing the title to something like "Anti-Vaxxers should have their heads checked" or something along those line would do well in my mind.