Truth be told, I wonder if we should be referring to them as "liberals" any longer, because it's another word that loses its meaning alongside "right wing," "Nazi" and a host of other terms that are just tossed at people they don't like.

I do think the term "coddled affluent professional" describes these people well (and it allows you to include Bill Kristol, Max Boot and David Frum, the leaders of the neocon movement). If we're looking for a shorter term, CAP stands for "coddled affluent professional," so maybe "cappies"? *shrugs*