Okay, can anyone think of any better way to provide exposure to the sentiments expressed on someone's tee-shirt than to publicly ban him from wearing it? Instead of a couple of thousand people seeing the shirts worn by that band, the fool who banned them has guaranteed that several million people will be exposed not only to the shirts' message, but to the extremes to which supporters of that message's target are willing to go prevent it's being seen.   

Yep, that's lizard brained thinking all right. Get angry, react instinctively, don't worry about the consequences.