I wasn't exactly a longhair during the 60's, but did consider myself a "liberal" then, and for years afterward. I knew enough to understand the evils of socialism, but was too inattentive to realize that "liberals" and their causes were nothing but socialism in disquise. IMO, a good many of toaday's liberals don't understand that either. A good many do, of course.
I only woke up years later.
I probably still consider myself a "liberal," but only in the "classical" sense - in other words, more of a libertarian, but hopefully without the screwball tendencies!