I think you might be underestimating the positive impact that something like Oxford Bifest can have. Sure, its not directly confrontational, but I'm less clear than I used to be about the value of direct confrontation. I've spent years doing eco-activism of a confrontational nature, and although I don't regret it for a moment, I think engaging in any kind of conflict is a double-edged sword. Means are just as important as ends, and there is a tendency for people to become like the thing they fight against. Its a huge question, and deeply complicated. Stare too long into the abyss, and the abyss will stare into you... One for a fireside chat, I think!