Conservatives are so stupid as to be unteachable.
(Sigh)
I couldn't have asked for a better example of the smug, self-important, close-minded (pseudo-)liberal view: "they disagreed with me EVEN AFTER I told them they're wrong, so they just must be TOO STUPID to understand what I'm saying -- don't they
know all the
superior people are liberal???"
This isn't real liberalism, of course -- it's mere class snobism, the sort of behavior typical of what someone once called the "herd of independent minds". It's being a liberal not so much because one thinks it's the correct worldview, but mostly because one wishes to emulate "all the right people", much like other people wish to drive the same car
their role models drive, or wear the same dress their heroine wears in the latest fashion magazine.
(In any case, there's precious little evidence the political fads the "intellectual elite of progressive liberals" supported in the last 100 years -- from Communism to Eugenics to "Great-Societism" to Fruedian psychoanalysis, to name a few -- is any better, on average, than the equivalent fads on the part of the "stupid conservatives", such as creationism, for instance. Creationism is a dumb fantasy, but no dumber or fantastic than Communism.)
Naturally it is these kind of "liberals" that are the rudest and most dismissive of conservatives -- for exactly the same reason it is those who buy a certain brand of car purely for show and status that are the most dismissive of those who drive a different car. Those who buy the same exact car because they simply like it, usually care much less what others drive. After all, it's no fun buying car X or holding political view Y for social status unless you get to flaunt your superiority with them, is it?
But -- such rude fools aside -- most liberals are of the "bought the car I liked best" variety, afer all. They're not any ruder, more threathening, or less tolerant to hearing others with different views speak than most conservatives. This I can say after years of experience in a liberal university. If "close mindedness" means "intolerant", most liberals are no more, or less, "close minded" than most conservatives (political pundits on both sides calling the other side "intolerant" notwithstanding.)
Now, we all have "core" belief in which we are more close minded than in our other beliefs. In areas of "core" conservative belief, conservatives tend to be just as hard to move as liberals about their own "core" beliefs ("hard to be moved" and "rude to anybody who disagrees" are not the same thing, naturally). So it isn't that there's anything particularly "liberal" about the mere fact of being close-minded about something.
However, the core is much larger and homogenous in the liberal worldview: there are, it seems, a LOT more things you MUST believe are THE OBVIOUS TRUTH if you are a "liberal" than if you are a "conservative". The result is comulative close-mindedness on the liberal side, since on very many social, economic, and political issues, the conservative will be willing to more possiblities more objectively than the liberal -- because it isn't part of his "core" worldview, while it
is part of the liberal's "core" worldview.