"Recent evidence has revealed that people who reject or distrust science are not especially well informed about it, but more importantly, they typically believe that they do understand the science. 

"This result has, over the past five years, been found over and over in studies investigating attitudes to a plethora of scientific issues, including vaccines and GM foods. It also holds, we discovered, even when no specific technology is asked about. However, they may not apply to certain politicised sciences, such as climate change.

"Recent work also found that overconfident people who dislike science tend to have a misguided belief that theirs is the common viewpoint and hence that many others agree with them." - Joel Abrams

Article: Why Some People Don’t Trust Science – And How To Change Their Minds

Related Article: Why the Arabic World Turned Away from Science