sounds to me like something specific has upset you. Its not nice to have something that you value, disrespected.

there are some people who think my sort of music doesn't even have the right to regard itself as folk music. I think those people are are a bit pitiable. They can only define themselves by negativity.

I think if you feel there is real malevolence behind what you see as an attack on your values - speak up. It will upset some folks - but sod 'em. You've got a right to live by your own values.