And “lesswrong.com″ just went from my bookmarks to my speed dial. Anyway, I would like to say that rather than your hypothetical and “ideal” retort of “MLK was the good kind of criminal,” I would prefer the more sophisticated response you put forth for other situations, but more generalized: “I fail to see how that is relevant.”
“But… but… abortion is MURDER!” (Please note that I am against abortion for reasons I categorically refuse to discuss due to several harrowing experiences on spacebattles.com forums, although this site seems much more civil) “I fail to see how that is relevant.”
“I wish for everything written on this scroll.” Or some variation thereof that more exactly expresses that general idea.