Here’s part of one blogger’s take, known as Sultan Knish, on the issue (highly recommend reading the entire piece):
“Like math and the Midwest, ISIS confuses progressives. It’s not hard to confuse a group of people who never figured out that if you borrow 18 trillion dollars, you’re going to have to pay it back. But ISIS is especially confusing to a demographic whose entire ideology is being on the right side of history.
“Raised to believe that history inevitably trended toward diversity in catalog models, fusion restaurants and gay marriage, the Arab Spring led them on by promising that the Middle East would be just like Europe and then ISIS tore up their Lonely Planet guidebook to Syria and chopped off their heads.
Hat tip to Instapundit for the find.