Nope. It's you who have it wrong. I'll sing what I damn well like at whatever venue I choose and introduce it in whatever way I feel is appropriate. You're unlikely to be there but, if you are, tough - political comment is an integral part of folk music and if you don't like it, pop out for a beer. That's what I'd do if someone introduced a fascist theme - then I'd tell the person afterwards exactly what I thought of them.