Do you think it's possible that "anti-vaxers" DO use logic and reason to make the decision whether or not to vaccinate themselves or their children? After all, it has been confirmed that receiving vaccines can be risky according to the NVIC "U.S. Congress and Institute of Medicine Confirm Government Licensed and Recommended Vaccines Can Cause Injury and Death". Sure, not getting vaccinated might be risky but getting vaccinated is risky too. Are you really going to call those people "dangerous" because they choose to avoid something that can cause death? Did you ever consider that the reason such groups have formed is largely in response to the persecution they face from "pro-vaxers"?