They are not denying science, they are denying consensus. As a methodology, they are not performing science. Neither are most of those who assent to consensus. Consensus about scientific results is a political, rather than scientific problem. It is a deeply baked-in contradiction of socializing participation as an exercise in individual choices amidst a marketplace of ideas - there is no provision made for the event that crucial decisions would ever need to be based principally upon factual information about the world at large rather than human whims. In an individualist capitalist society, there is no ethical imperative for anybody to believe or act upon scientific consensus. It is a pre-scientific society.
Try establishing a few countries/societies/cultures which are based upon science rather than commerce.
