"In 2004, the University of Michigan's American National Election Studies (ANES) survey asked about 1,200 American adults to give their thermometer scores of various groups. People in this survey who called themselves "conservative" or "very conservative" did have a fairly low opinion of liberals -- they gave them an average thermometer score of 39. The score that liberals give conservatives: 38. Looking only at people who said they are "extremely conservative" or "extremely liberal," the right gave the left a score of 27; the left gives the right an icy 23. So much for the liberal tolerance edge.
Some might argue that this is simply a reflection of the current political climate, which is influenced by strong feelings about the current occupants of the White House. And sure enough, those on the extreme left give President Bush an average temperature of 15 and Vice President Cheney a 16. Sixty percent of this group gives both men the absolute lowest score: zero.
To put this into perspective, note that even Saddam Hussein (when he was still among the living) got an average score of eight from Americans. The data tell us that, for six in ten on the hard left in America today, literally nobody in the entire world can be worse than George W. Bush and Dick Cheney.
This doesn't sound very tolerant to me -- nor especially rational, for that matter. To be fair, though, let's roll back to a time when the far right was accused of temporary insanity: the late Clinton years, when right-wing pundits practically proclaimed the end of Western civilization each night on cable television because President Clinton had been exposed as a perjurious adulterer.
In 1998, Bill Clinton and Al Gore were hardly popular among conservatives. Still, in the 1998 ANES survey, Messrs. Clinton and Gore both received a perfectly-respectable average temperature of 45 from those who called themselves extremely conservative. While 28% of the far right gave Clinton a temperature of zero, Gore got a zero from just 10%. The bottom line is that there is simply no comparison between the current hatred the extreme left has for Messrs. Bush and Cheney, and the hostility the extreme right had for Messrs. Clinton and Gore in the late 1990s.
Does this refute the stereotype that right-wingers are "haters" while left-wingers are not? Liberals will say that the comparison is unfair, because Mr. Bush is so much worse than Mr. Clinton ever was. Yes, Mr. Clinton may have been imperfect, but Mr. Bush -- whom people on the far left routinely compare to Hitler -- is evil. This of course destroys the liberal stereotype even more eloquently than the data. The very essence of intolerance is to dehumanize the people with whom you disagree by asserting that they are not just wrong, but wicked.
In the end, we have to face the fact that political intolerance in America -- ugly and unfortunate on either side of the political aisle -- is to be found more on the left than it is on the right. This may not square with the moral vanity of progressive political stereotypes, but it's true."
- From Arthur C. Brooks, writing in The Wall Street Journal