The argument "what is folk" permanently poisoned me to all things folk-related forever because it's so hypocritical. It's so disingenuous. It's an attempt to argue that one form of music is objectively better than another because of some trumped-up pedigree.
Mmm. Yeah. I come from a slightly different direction, but end up at a similar perspective. Personally, I think people are not only concerned with pedigree, but aesthetics. Me? I worry more about the philosophy and the drive to play. I'd readily argue that a bunch of kids playing a barn show doing Stooges and Ramones covers for free because they like the music and they like to party or a bunch of kids experimenting with Hip-Hop and mixing equipment on their downtime and those afore mentioned kids and their YouTube covers, have more right to the "folk" title than commercial country music.