There is a belief, among progressives of course, that conservatives are more "anti science" - but progressives in science tend to gloss over the anti-science positions of the left, and the anti-vaccine community is made up of far more progressives than climate change skepticism is made up of conservatives.    While the latter has long-term consequences, anti-vaccine people have short term danger for our children and theirs.

In Washington Or Alabama - Who Is More Pro Science?  I noted the alarming trend in progressive bastions like Washington State overall and, more specifically, uber-left Seattle, where there is a runaway war against science occurring and parents are the cause - 20% of some kindergarten students have no vaccinations.

At Psychology Today, Richard Yonck discusses why that is; humans like to find patterns in a chaotic world, even if that leads to correlation-causation arrows that get messed up.  So if they read about mercury and rises in diagnoses of autism, they look for a link.   

Vaccinations: The Intelligent Choice? -  Richard Yonck,  Psychology Today