It's possible to post blunt, serious information w/o being horribly negative. Even if the information is harsh, there will always be a way to present it that doesn't focus solely on the hate or the fear or whatever the inherent negative is.
Orlando? Yes, it was horrible. Yes, we have to talk about some of it. Tom's right about that. But do we have to fight about guns or immigrants? Not really. Anyway, he can do what he wants, but I disagree that real conversations can't feel positive, even when the topic is upsetting.