Dear Dave, My neighbor across the street just put a giant Trump/Pence flag in their front yard. A week later―the day after the Breonna Taylor grand jury came back—he added a Blue Lives Matter flag to the pole. These people are very kind, perhaps the kindest and most generous people on our suburban block. And yet ... they're Trump supporters? They reject the idea of Black Lives Matter? I don't know what to do about it. It's like a big middle finger, whether they know it or not. I'd like to put up a Biden sign, or a "Hate Has...