No, I couldn't tell you were being silly.
More than that it's very strange to say "Let em die" and then brush it off. There's no context clues to make that make sense.
At the very least, you need emoticons. (That is why I began using them: They convey the sort of information unavailable elsewhere.)
The whole catastrophe, the death of billions of people because of the incompetence of one polity aggravated by the failures of another, is in any case very difficult to make light of.