I am not talking about people who prefer to not wear a mask when possible or who are afraid to vaccinate because they have heard too many fear stories about vaccines. I am talking about specific people who spread FUD about masks or vaccines. How should we call them?
I think these are precise enough terms and are well understood and widely accepted.
I have personally seen enough evidence that this kind of behavior is shared by the same people. I have also seen enough evidence to deduce that they will do exactly what I told that they will do.
Shall I not write about this prediction? Even when this is based on very specific observations about said people over longer period of time? I just do not want to put too many details about myself into public so that I could not be easily identified. I know that this does reduce my credibility though. I am sorry.
I understand that these are perhaps not a kind kind of terms and perhaps they do not like to be called like that but so did Nazis. I think it is not enough to stop using this term for them.
I tried to be terse because I tend to write too much. As we can see, in the end it did lead to even more words. I try to be more explanatory in the future such that there is less misunderstanding in my writing.
At a minimum, you should be careful to avoid swipey phrases like "wave of wailing" (and arguably also "anti-vaxxer crowd). Such pejorative phrases are sparks that can easily set fire to the fuel.
I hope that helps a bit.