Why do they have to have their mind changed? Just because someone dislikes U2 doesn't put them into the category of "big man and wants to hate on U2." Maybe he doesn't want to end up being some guy who thinks if you don't like his favorite band you're "crazy?"
Your friend simply needs to, with an open mind if possible, go to a show. U2 are a lot like the Dead in that the true power of the group is seen, notnecessarily from their stereo recordings, but from what they do live. If he wants to be a big man and hate on U2, that's his choice, but he's missingthe grea