I'm not sure I totally buy her thesis that it is only "progressives" that fight against vaccination, GMOs, nuclear, energy projects and the like. Nonetheless, there is certainly truth to the idea that even those who fight for science will ignore science that does not back up their preconceived ideas and fears.
So I guess the question is - what would it take for you to reverse a dearly held preconception or view? Perhaps, just perhaps, if we recognize these biases and understand where they come from in ourselves, maybe we might be able to start engaging others who we view as less than enlightened.
Or maybe people are people and we just have to muddle along as best we can.