Nothing anyone does or says about Thatcher is bad enough. But if she were a singer and I walked out of her concert, I wouldn't be entitled to my money back. Mind you I'd have been more likely to do a Chumbawamba. I might well leave if Vin Garbutt did that song, too, but again I would not be entitled to my money back. I might actually go to see David Hannam out of curiosity, he's a perfectly workmanlike singer and player (better than me, anyway) even if the content of what I've heard him do or seen written down is mostly vile. One of the functions of art is to shock enough to cause thought (and it's the thought bit that is usually missing from the lunatic right).

In common US parlance (not academic parlance) although it is in my view wrong to put it so, the words "folk music" seem to include a "tradition" (it's a bit short really to be a tradition, but, hey, it's a young country) of contemporary protest songs of rural, urban, and even suburban life. Sounds like it did what it said on the tin.

Country music has some on the other end of the bargepole, but not all the time.