You've misrepresented the quote, and in the process invalidated your whole point. The original quote is diplomacy is war by other means. And it had very specif

You've misrepresented the quote, and in the process invalidated your whole point. The original quote is diplomacy is war by other means. And it had very specific connotations to explicitly adversarial political relationships. Politics is much larger than diplomacy, and indeed as Aristotle concluded there is nothing in a society that is not politics.