If you’ve gotten involved in any of these debates, you know that these people aren’t happy warriors; they’re red-faced angry, with special rage directed at know-it-alls who snootily point out that the facts don’t support their position.
The question, as I said at the beginning, is why. Why the dogmatism? Why the rage? And why do these issues go together, with the set of people insisting that climate change is a hoax pretty much the same as the set of people insisting that any attempt at providing universal health insurance must lead to disaster and tyranny?