Yes, Republican creationists exist, but they don’t affect the biologists or anthropologists studying evolution. Yes, George W. Bush refused federal funding for embryonic stem-cell research, but that hardly put a stop to it (and not much changed after Barack Obama reversed the policy). Many Liberals rail at scientists and politicians who oppose government policies favored by progressives, but if you’re looking for serious damage to the enterprise of science, they come from the Left. The only successful war on science is the one waged by the Left. The danger from the Left does not arise from stupidity or dishonesty; those failings are bipartisan. Two huge threats to science are peculiar to the Left—and they’re getting worse.
The first threat is confirmation bias, the well-documented tendency of people to seek out and accept information that confirms their beliefs and prejudices. In a classic study of peer review, 75 psychologists were asked to referee a paper about the mental health of left-wing student activists. Some referees saw a version of the paper showing that the student activists’ mental health was above normal; others saw different data, showing it to be below normal. Sure enough, the more liberal referees were more likely to recommend publishing the paper favorable to the left-wing activists. When the conclusion went the other way, they quickly found problems with its methodology.
Scientists try to avoid confirmation bias by exposing their work to peer review by critics with different views, but it’s increasingly difficult for liberals to find such critics. Academics have traditionally leaned left politically, and many fields have essentially become monocultures, especially in the social sciences, where Democrats now outnumber Republicans by at least 8 to 1. (In sociology, where the ratio is 44 to 1, a student is much likelier to be taught by a Marxist than by a Republican.) The lopsided ratio has led to another well-documented phenomenon: people’s beliefs become more extreme when they’re surrounded by like-minded colleagues. They come to assume that their opinions are not only the norm but also the truth.
Groupthink has become so routine that many scientists aren’t even aware of it. Social psychologists, who have extensively studied conscious and unconscious biases against out-groups, are quick to blame these biases for the underrepresentation of women or minorities in the business world and other institutions. But they’ve been mostly oblivious to their own diversity problem, which is vastly larger. Democrats outnumber Republicans at least 12 to 1 (perhaps 40 to 1) in social psychology. Having common values makes a group cohesive, which can be quite useful, but it’s the last thing that should happen to a scientific field. Progressivism, especially anti-racism, has become a fundamentalist religion, complete with anti-blasphemy laws.
The second great threat from the Left is its long tradition of mixing science and politics. To conservatives, the fundamental problem with the Left is the delusion that experts are wise enough to redesign society. Conservatives distrust central planners, preferring to rely on traditional institutions that protect individuals’ “natural rights” against the power of the state. Leftists have much more confidence in experts and the state. The Left calls for “scientific socialism,” a redesign of society supposedly based on the scientific method. Progressives yearned for a society guided by impartial agencies unconstrained by old-fashioned politics and religion. The Left sees scientists as the new high priests, offering them prestige, money, and power. The power too often corrupted. Over and over, scientists yielded to the temptation to exaggerate their expertise and moral authority, sometimes for horrendous purposes.
Thomas Jefferson would be appalled. To him, Science was the great equalizer. “Wherever the people are well-informed,” Jefferson wrote, “they can be trusted with their own government.” To secure this, he championed a free press and public education. This places an ever-increasing burden on the voter, and in an age when science has grown mind-bogglingly complex, public education and the press are unduly influenced by corporations focused on financial outcomes, religious extremists intent on forcing biblical literalist policies, and postmodernist academics who’ve laid the foundation for all this by teaching that science is but one of many equally valid “ways of knowing” and that all truth is relative. In particular, Otto argues that journalists are taught there is no such thing as objectivity. This has created an over-emphasis on balance, which these days often pits scientists relaying objective knowledge on the one hand, against impassioned advocates seeking to persuade on the other. This false balance skews public dialogue toward extreme views by presenting opinions as if they had the weight of knowledge, weakening the press’s role as democracy’s tiller.
Eventually even false balance can be countered with ensuring scientists appearing are taught how to be more confrontational as opposed to aiming to be reasoned educators. The "I am not a scientist" is normally used to mean "I am not scientifically literate" and then the question has to be "so why do you think your opinion matters over textbook science?"
Mark Twain said :
If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed.At the beginning of the 21st century you can substitute "the Internet" for "the newspaper" and Twain's remark is still valid.