Shills for anti-evolution/anti-science measures often point to the fact that many in the general public believe in some variant of creationism. At the same time, those shills ignore the fact that 99.9% of scientists who actually know something about the topic accept evolution as the best scientific explanation for the diversity of life we've observed on our planet.

Thus, by the anti-evo tally, uninformed public opinion should be a greater factor in determining curriculum than the research-based consensus of the world-wide scientific community.

Or, to put it more succinctly - they believe that ignorance overrules evidence.