I've read your post history and have truly been impressed by the levity of your argument.
You certainly used the right word in your assessment:
lev·i·ty(lv-t) n. pl. lev·i·ties 1. Lightness of manner or speech, especially when inappropriate; frivolity. 2. Inconstancy; changeableness. 3. The state or quality of being light; buoyancy.