A friend writes:

You’re all missing the most obvious sign of elitism: ignorance of, or disdain for, NASCAR. This one is important because it enables one to
distinguish “elitism” from “liberalism.” A good libertarian like myself
is surely an elitist because I do not care, nor do I have a clue, about
anything having to do with NASCAR, and continually find myself mystified
by those who are fascinating by cars driving around in circles for 2 or
3 hours.
The NASCAR dad phenomenon is real, though it probably doesn’t reflect
conservatism as much as it does non/anti-elitism.
The only thing close to it is the equal disdain for Wal-Mart because it
too crosses political boundaries, e.g. the Crunchy Cons.