JC your main gripe so far as the casual observer can tell, is that there's no such thing as folk police, i.e. those who believe folk is a particular ethno-cultural artefact and Absolutely Nothing Else and will apprehend anyone who disagrees with that conclusion.

The folk police force believe its job is to save folk music from some threat or other, nail it down with definitions, establish a pantheon of approved artists and forms and act outraged or wounded if anyone suggests otherwise. Police force members closely align themselves with this artefact and take any debate about it as a personal attack on themselves, using a variety of strategies that puts themselves centre stage.

I also like leeneia's post but if s/he were to post such sentiments too often s/he'd have her collar felt.