I do appreciate the professional folk musicians and enjoy what they do. However, if you choose to become a professional and you find you can't make a living at it, there's no point in complaining - it's obvious that people just don't want to buy what you're selling. If you think folk music is hard you should try being a writer and getting stuff published, or an artist, a classical pianist, a ballet dancer or whatever. In the end - even though you may be a genius - the world doesn't owe you a living. You either have the conviction that what you are creating is great and stick at it whilst finding another way to put food on the table, or change what you do to find a more commercial output. As with anything creative, though, you may just have to face the possibility that you're not good enough.