I've used the democide argument again and again, but it often falls on deaf ears, unfortunately. I guess they assume things like that would still happen without government or maybe something worse? I dunno. Steven Pinker's book, The Better Angles of Our Nature, argues for the Hobbesian Leviathan using deaths per 100k as a metric, but others critique his work to say his "anarchist" societies were nothing but. I recently read The Origins of Virtue and I think that makes a better argument that government does just break everything it touches.