Jazz snobs are worse... they try to scare you with overanalyzing EVERY SINGLE FREAKING harmony in a piece, and then proceed to dismiss it as musical garbage.
But ya, Classical snobs generally feel threatened by other types of music. There was one kid who was saying that rap/hip-hop is "only about drugs". I don't listen to rap or anything, but that is about as naive as saying "classical is ONLY for old people". They are just another branch someone who just listens to rap, or metal, or rock, or punk, or jazz, etc, etc.... obsessed with the music they listen to, "and everything else is crap".
If music is only good if it was written by a famous composer, then you may as well just listen to the top 40 charts on the radio... it's the same deal.