"you bought a product with sectarian content from a pamphleteer, that money went to the cause he or she supported; in the same way that if I buy a Lifeboat sticker...your purchase of that songbook gives tacit approval to the activities of a sectarian organisation"

Dai, I'd appreciate if you'd make a distinction between a deliberate decision to support a cause like in the lifeboat sticker example and a purchase which with the benefit of hindsight can be viewed as having been in effect a support for a cause.

Last year, I went into a restaurant in my home town which later turned out to be a place where the Russian Mafia was "cleaning" money (don't know the correct term). My money helped them in effect to do that, but I'd hate to read about me that I approve of what the Russian Mafia does.
Blame it to my complicated English, if my last post wasn't clear: As a young tourist I bought a songbook on the street. It had among many other lyrics the lyrics to three songs I wanted. That's all.

Wolfgang