I have long been aware, though, of an alternate "Coexist" bumper sticker that represents a philosophy that actually makes coexistence more likely:
Yeah, those are the logos of arms manufacturers. Face it, your neighbor, no matter how divergent his views might be from yours, is much more likely to coexist with you in peace if he believes you can blow his ass away. You can buy the sticker here. And by the way, I don't recognize the C or the I. Anybody? Bueller? Bueller?