We should be worrying about the more than 100 million Americans who think the earth is 10,000 years old and trying to figure out how that happened. Marco Rubio is simply an expression of that large problem.
I have no expectation that every man, woman, and child should strive to become a professional scientist. But I do have every expectation that every man, woman, and child should strive to become more scientifically literate.
Consumers of science prefer simple messages and have heightened confidence in biological evidence to explain behavior. That may be human nature, but scientists should be careful not to play into these pervasive biases.